class




If you attend school, you probably have a favorite class — a series of lectures or discussions where you can learn about a particular subject, like English, math, or economics.

The characteristic of being high quality or displaying elegance is also called class. Your snobby friend might glance around your favorite diner and say, “Let’s go somewhere else. This place has no class.” In society, class refers to a ranking system based on socio-economics, birth, education level, or a combination of those things. Your ancestors might have been working class, until your grandfather struck it rich.

Definitions of class
  1. noun

    a collection of things sharing a common attribute

    “there are two
    classes of detergents”
    synonyms:
    category, family
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    types:

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    grammatical category, syntactic category

    (grammar) a category of words having the same grammatical properties
    paradigm, substitution class

    the class of all items that can be substituted into the same position (or slot) in a grammatical sentence (are in paradigmatic relation with one another)
    brass family

    (music) the family of brass instruments
    violin family

    (music) the family of bowed stringed instruments
    woodwind family

    (music) the family of woodwind instruments
    stamp

    a type or class
    sex

    either of the two categories (male or female) into which most organisms are divided
    declension

    a class of nouns or pronouns or adjectives in Indo-European languages having the same (or very similar) inflectional forms
    conjugation

    a class of verbs having the same inflectional forms
    denomination

    a class of one kind of unit in a system of numbers or measures or weights or money
    histocompatibility complex

    a family of fifty or more genes on the sixth human chromosome that code for proteins on the surfaces of cells and that play a role in the immune response
    case, grammatical case

    nouns or pronouns or adjectives (often marked by inflection) related in some way to other words in a sentence
    form class, part of speech, word class

    one of the traditional categories of words intended to reflect their functions in a grammatical context
    number

    the grammatical category for the forms of nouns and pronouns and verbs that are used depending on the number of entities involved (singular or dual or plural)
    person

    a grammatical category used in the classification of pronouns, possessive determiners, and verb forms according to whether they indicate the speaker, the addressee, or a third party
    gender, grammatical gender

    a grammatical category in inflected languages governing the agreement between nouns and pronouns and adjectives; in some languages it is quite arbitrary but in Indo-European languages it is usually based on sex or animateness
    tense

    a grammatical category of verbs used to express distinctions of time
    participant role, semantic role

    (linguistics) the underlying relation that a constituent has with the main verb in a clause
    type of:

    accumulation, aggregation, assemblage, collection

    several things grouped together or considered as a whole

  2. noun

    people having the same social, economic, or educational status

    “the working
    class
    “an emerging professional
    class
    synonyms:
    social class, socio-economic class, stratum
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    examples:

    Ferdinand and Isabella

    joint monarchs of Spain; Ferdinand V and Isabella I
    William and Mary

    joint monarchs of England; William III and Mary II
    types:

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    domain, world

    people in general; especially a distinctive group of people with some shared interest
    age class

    people in the same age range
    agriculture

    the class of people engaged in growing food
    brotherhood, fraternity, sodality

    people engaged in a particular occupation
    estate, estate of the realm, the three estates

    a major social class or order of persons regarded collectively as part of the body politic of the country (especially in the United Kingdom) and formerly possessing distinct political rights
    labor, labour, proletariat, working class

    a social class comprising those who do manual labor or work for wages
    lower class, underclass

    the social class lowest in the social hierarchy
    bourgeoisie, middle class

    the social class between the lower and upper classes
    booboisie

    class consisting of all those who are considered boobs
    commonality, commonalty, commons

    a class composed of persons lacking clerical or noble rank
    peasantry

    the class of peasants
    demimonde

    a class of woman not considered respectable because of indiscreet or promiscuous behavior
    underworld

    the criminal class
    yeomanry

    class of small freeholders who cultivated their own land
    caste

    a social class separated from others by distinctions of hereditary rank or profession or wealth
    caste

    (Hinduism) a hereditary social class among Hindus; stratified according to ritual purity
    upper class, upper crust

    the class occupying the highest position in the social hierarchy
    ninja

    a class of 14th century Japanese who were trained in martial arts and were hired for espionage and assassinations
    firing line

    the most advanced and responsible group in an activity
    immigrant class

    recent immigrants who are lumped together as a class by their low socioeconomic status in spite of different cultural backgrounds
    center

    politically moderate persons; centrists
    old school

    a class of people favoring traditional ideas
    market

    the customers for a particular product or service
    craft, trade

    people who perform a particular kind of skilled work
    fair sex, woman, womanhood

    women as a class
    Lords Spiritual, first estate

    the clergy in France and the heads of the church in Britain
    Lords Temporal, second estate

    the nobility in France and the peerage in Britain
    Commons, third estate

    the common people
    fourth estate

    the press, including journalists, newspaper writers, photographers
    labor force, labor pool

    the source of trained people from which workers can be hired
    lumpenproletariat

    (Marxism) the unorganized lower levels of the proletariat who are not interested in revolutionary advancement
    organized labor

    employees who are represented by a labor union
    petit bourgeois, petite bourgeoisie, petty bourgeoisie

    lower middle class (shopkeepers and clerical staff etc.)
    academe, academia

    the academic world
    Grub Street

    the world of literary hacks
    jati

    (Hinduism) a Hindu caste or distinctive social group of which there are thousands throughout India; a special characteristic is often the exclusive occupation of its male members (such as barber or potter)
    elite, elite group

    a group or class of persons enjoying superior intellectual or social or economic status
    aristocracy, gentry

    the most powerful members of a society
    people in power, ruling class

    the class of people exerting power or authority
    black market

    people who engage in illicit trade
    type of:

    people

    (plural) any group of human beings (men or women or children) collectively

  3. noun

    a body of students who are taught together

    “early morning
    classes are always sleepy”
    synonyms:
    course, form, grade
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    types:

    master class

    a class (especially in music) given to talented students by an expert
    discussion section, section

    a small class of students who are part of a larger course but are taught separately
    type of:

    assemblage, gathering

    a group of persons together in one place

  4. noun

    a body of students who graduate together

    “the
    class of ’97”
    synonyms:
    year
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    types:

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    graduating class

    the body of students who graduate together this year
    senior class

    final grade or class in high school or college
    junior class

    penultimate class in high school or college
    sophomore class

    the second class in a four-year college or high school
    freshman class

    the first class in college or high school
    type of:

    assemblage, gathering

    a group of persons together in one place

  5. noun

    (biology) a taxonomic group containing one or more orders

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    types:

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    Schizomycetes, class Schizomycetes

    a former classification
    Cyanophyceae, class Cyanobacteria, class Cyanophyceae

    photosynthetic bacteria found in fresh and salt water, having chlorophyll a and phycobilins; once thought to be algae: blue-green algae
    Sarcodina, class Sarcodina

    characterized by the formation of pseudopods for locomotion and taking food: Actinopoda; Rhizopoda
    Actinopoda, subclass Actinopoda

    heliozoans; radiolarians
    Rhizopoda, subclass Rhizopoda

    creeping protozoans: amoebas and foraminifers
    Ciliata, Ciliophora, class Ciliata, class Ciliophora

    class of protozoa having cilia or hairlike appendages on part or all of the surface during some part of the life cycle
    Infusoria, subclass Infusoria

    in some recent classifications, coextensive with the Ciliata: minute organisms found in decomposing infusions of organic matter
    Chrysophyceae, Heterokontae, class Chrysophyceae, class Heterokontae

    all the yellow-green algae having flagella of unequal length
    Xanthophyceae, class Xanthophyceae

    yellow-green algae
    Bacillariophyceae, Diatomophyceae, class Bacillariophyceae, class Diatomophyceae

    marine and freshwater eukaryotic algae: diatoms
    Phaeophyceae, class Phaeophyceae

    brown algae; mostly marine and littoral eukaryotic algae
    Cyclosporeae, class Cyclosporeae

    in more recent classifications superseded by the order Fucales
    Euglenophyceae, class Euglenophyceae

    coextensive with the division Euglenophyta
    Chlorophyceae, class Chlorophyceae

    algae distinguished chiefly by having flagella and a clear green color, their chlorophyll being masked little if at all by other pigments
    Ulvophyceae, class Ulvophyceae

    alternative name for the class Chlorophyceae in some classifications
    Charophyceae, class Charophyceae

    in some classifications: contains only the order Charales
    Rhodophyceae, class Rhodophyceae

    coextensive with the Rhodophyta: red algae
    Flagellata, Mastigophora, class Flagellata, class Mastigophora

    protozoa having flagella
    Zoomastigina, subclass Zoomastigina

    in some classifications considered a phylum of the kingdom Protista; holozoic or saprozoic flagellates
    Phytomastigina, subclass Phytomastigina

    plantlike flagellates containing chlorophyll; often considered unicellular algae
    Cryptophyceae, class Cryptophyceae

    motile usually brownish-green protozoa-like algae
    Sporozoa, class Sporozoa

    strictly parasitic protozoans that are usually immobile; includes plasmodia and coccidia and piroplasms and malaria parasites
    Telosporidia, subclass Telosporidia

    parasitic sporozoans that form spores containing one or more infective sporozoites
    Acnidosporidia, subclass Acnidosporidia

    a subclass of Sporozoa
    Cnidosporidia, subclass Cnidosporidia

    single-host parasites of lower vertebrates and invertebrates
    Ascidiaceae, class Ascidiaceae

    sometimes classified as an order: sea squirts
    Thaliacea, class Thaliacea

    small class of free-swimming tunicates; sometimes classified as an order
    Larvacea, class Larvacea

    small free-swimming tunicates; sometimes classified as an order
    Agnatha, superclass Agnatha

    superclass of eel-shaped chordates lacking jaws and pelvic fins: lampreys; hagfishes; some extinct forms
    Gnathostomata, superclass Gnathostomata

    comprising all vertebrates with upper and lower jaws
    Placodermi, class Placodermi

    extinct group of bony-plated fishes with primitive jaws
    Chondrichthyes, class Chondrichthyes

    cartilaginous fishes
    Holocephali, subclass Holocephali

    chimaeras and extinct forms
    Elasmobranchii, Selachii, subclass Elasmobranchii, subclass Selachii

    sharks; rays; dogfishes; skates
    Aves, class Aves

    (ornithology) the class of birds
    Archaeornithes, subclass Archaeornithes

    primitive reptile-like fossil birds of the Jurassic or early Cretaceous
    amphibia, class Amphibia

    the class of vertebrates that live on land but breed in water; frogs; toads; newts; salamanders; caecilians
    Reptilia, class Reptilia

    class of cold-blooded air-breathing vertebrates with completely ossified skeleton and a body usually covered with scales or horny plates; once the dominant land animals
    Anapsida, subclass Anapsida

    oldest known reptiles; turtles and extinct Permian forms
    Lepidosauria, subclass Lepidosauria

    diapsid reptiles: lizards; snakes; tuataras
    Archosauria, subclass Archosauria

    a large subclass of diapsid reptiles including: crocodiles; alligators; dinosaurs; pterosaurs; plesiosaurs; ichthyosaurs; thecodonts
    Synapsida, subclass Synapsida

    extinct reptiles of the Permian to Jurassic considered ancestral to mammals
    Chelicerata, superclass Chelicerata

    spiders; scorpions; horseshoe crabs
    Arachnida, class Arachnida

    a large class of arthropods including spiders and ticks and scorpions and daddy longlegs; have four pairs of walking legs and no wings
    superclass Myriapoda

    used in some classifications to encompass the millipedes (Diplopoda) and centipedes (Chilopoda); formerly a large taxon including also the Pauropoda and Symphyla; the term Myriapoda now usually used synonymously with Diplopoda and limited to the millipedes
    Pauropoda, class Pauropoda

    an obscure class of minute arthropods with branched antennae and 8 to 10 pairs of legs
    Symphyla, class Symphyla

    small class of minute arthropods; unimportant except for the garden centipede
    Tardigrada, class Tardigrada

    in some classifications considered a separate phylum: microscopic arachnid-like invertebrates living in water or damp moss having 4 pairs of legs and instead of a mouth a pair of stylets or needlelike piercing organs connected with the pharynx
    Chilopoda, class Chilopoda

    arthropods having the trunk composed of numerous somites each bearing one pair of legs: centipedes
    Diplopoda, Myriapoda, class Diplopoda, class Myriapoda

    arthropods having the body composed of numerous double somites each with two pairs of legs: millipedes
    Mammalia, class Mammalia

    warm-blooded vertebrates characterized by mammary glands in the female
    Prototheria, subclass Prototheria

    echidnas; platypus
    Pantotheria, subclass Pantotheria

    generalized extinct mammals widespread during the Jurassic; commonly conceded to be ancestral to marsupial and placental mammals
    Metatheria, subclass Metatheria

    pouched animals
    Eutheria, subclass Eutheria

    all mammals except monotremes and marsupials
    Hyalospongiae, class Hyalospongiae

    sponges with siliceous spicules that have six rays; choanocytes are restricted to finger-shaped chambers
    Scyphozoa, class Scyphozoa

    coelenterates in which the polyp stage is absent or at least inconspicuous: jellyfishes
    Hydrozoa, class Hydrozoa

    coelenterates typically having alternation of generations; hydroid phase is usually colonial giving rise to the medusoid phase by budding: hydras and jellyfishes
    Actinozoa, Anthozoa, class Actinozoa, class Anthozoa

    a large class of sedentary marine coelenterates that includes sea anemones and corals; the medusoid phase is entirely suppressed
    Nuda, class Nuda

    ctenophores lacking tentacles; comprises one genus: beroe
    Tentaculata, class Tentaculata

    ctenophores have retractile tentacles
    Turbellaria, class Turbellaria

    free-living flatworms
    Trematoda, class Trematoda

    parasitic flatworms (including flukes)
    Cestoda, class Cestoda

    tapeworms
    Aphasmidia, class Aphasmidia

    one of two subgroups of Nematoda used in some classification systems
    Phasmidia, class Phasmidia

    one of two subgroups of Nematoda used in some classification systems
    Archiannelida, class Archiannelida

    a class of Annelida
    Oligochaeta, class Oligochaeta

    earthworms
    Polychaeta, class Polychaeta

    marine annelid worms
    Hirudinea, class Hirudinea

    hermaphroditic aquatic or terrestrial or parasitic annelids
    Scaphopoda, class Scaphopoda

    small class of bilaterally symmetrical marine forms comprising the tooth shells
    Gasteropoda, Gastropoda, class Gasteropoda, class Gastropoda

    snails and slugs and their relatives
    Opisthobranchia, subclass Opisthobranchia

    gastropods having the gills when present posterior to the heart and having no operculum: includes sea slugs; sea butterflies; sea hares
    Amphineura, subclass Amphineura

    a class of Gastropoda
    Polyplacophora, class Polyplacophora

    small class of marine mollusks comprising the chitons; sometimes considered an order of the subclass Amphineura
    Bivalvia, Lamellibranchia, class Bivalvia, class Lamellibranchia, class Pelecypoda

    oysters; clams; scallops; mussels
    Cephalopoda, class Cephalopoda

    octopuses; squids; cuttlefish; pearly nautilus
    Dibranchia, Dibranchiata, subclass Dibranchia, subclass Dibranchiata

    comprising all living cephalopods except the family Nautilidae: the orders Octopoda (octopuses) and Decapoda (squids and cuttlefish)
    Crustacea, class Crustacea

    class of mandibulate arthropods including: lobsters; crabs; shrimps; woodlice; barnacles; decapods; water fleas
    Malacostraca, subclass Malacostraca

    largest subclass of Crustacea including most of the well-known marine, freshwater, and terrestrial crustaceans: crabs; lobsters; shrimps; sow bugs; beach flies
    Entomostraca, subclass Entomostraca

    in some older classifications includes the Branchiopoda and Copepoda and Ostracoda and Cirripedia; no longer in technical use
    Branchiopoda, subclass Branchiopoda

    primitive aquatic mainly freshwater crustaceans: fairy shrimps; brine shrimps; tadpole shrimps; can shrimps; water fleas
    Copepoda, subclass Copepoda

    minute planktonic or parasitic crustaceans
    Ostracoda, subclass Ostracoda

    seed shrimps
    Cirripedia, subclass Cirripedia

    barnacles
    Onychophora, class Onychophora

    enigmatic small elongated wormlike terrestrial invertebrates of damp dark habitats in warm regions; distinct from the phylum Annelida; resemble slugs with legs and are sometimes described as the missing link between arthropods and annelids
    Hexapoda, Insecta, class Hexapoda, class Insecta

    insects; about five-sixths of all known animal species
    Exopterygota, Hemimetabola, subclass Exopterygota

    subclass of insects characterized by gradual and usually incomplete metamorphosis
    Asteroidea, class Asteroidea

    sea stars
    Ophiuroidea, class Ophiuroidea

    brittle stars and basket stars
    Ophiurida, subclass Ophiurida

    brittle stars
    Euryalida, subclass Euryalida

    basket stars
    Echinoidea, class Echinoidea

    sea urchins and sand dollars
    Crinoidea, class Crinoidea

    sea lilies
    Holothuroidea, class Holothuroidea

    class of echinoderms including the sea cucumbers
    Hominoidea, superfamily Hominoidea

    anthropoid apes and human beings
    Channidae, class Channidae

    snakeheads
    Osteichthyes, class Osteichthyes

    a class of fish having a skeleton composed of bone in addition to cartilage
    Crossopterygii, subclass Crossopterygii

    fishes having paired fins resembling limbs and regarded as ancestral to amphibians
    Dipnoi, subclass Dipnoi

    bony fishes of the southern hemisphere that breathe by a modified air bladder as well as gills; sometimes classified as an order of Crossopterygii
    Teleostei, subclass Teleostei

    large diverse group of bony fishes; includes most living species
    Anthoceropsida, class Anthoceropsida

    hornworts: in some classification systems included in the class Hepaticopsida
    Bryopsida, Musci, class Bryopsida, class Musci

    true mosses: bryophytes having leafy rather than thalloid gametophytes: comprises orders Andreaeales; Bryales; Dicranales; Eubryales; Sphagnales
    Hepaticae, Hepaticopsida, class Hepaticae, class Hepaticopsida

    liverworts: comprises orders Anthocerotales; Jungermanniales; Marchantiales; Sphaerocarpales
    Gymnospermae, Gymnospermophyta, class Gymnospermae, division Gymnospermophyta

    plants having naked seeds not enclosed in an ovary; in some systems considered a class (Gymnospermae) and in others a division (Gymnospermophyta); comprises three subdivisions (or classes): Cycadophytina (class Cycadopsida) and Gnetophytina (class Gnetopsida) and Coniferophytina (class Coniferopsida); in some classifications the Coniferophytina are divided into three groups: Pinophytina (class Pinopsida) and Ginkgophytina (class Ginkgopsida) and Taxophytina (class Taxopsida)
    Gnetophyta, Gnetophytina, Gnetopsida, class Gnetopsida, subdivision Gnetophytina

    gymnospermous flowering plants; supposed link between conifers and angiosperms; in some systems classified as a class (Gnetopsida) and in others as a subdivision (Gnetophytina or Gnetophyta)
    Cycadophyta, Cycadophytina, Cycadopsida, class Cycadopsida, subdivision Cycadophyta, subdivision Cycadophytina

    palmlike gymnosperms: includes the surviving order Cycadales and several extinct orders; possibly not a natural group; in some systems considered a class (Cycadopsida) and in others a subdivision (Cycadophytina or Cycadophyta)
    Pteridospermopsida, class Pteridospermopsida

    extinct gymnosperms most of Carboniferous to Jurassic: seed ferns and allies
    Coniferophyta, Coniferophytina, Coniferopsida, class Coniferopsida, subdivision Coniferophytina

    cone-bearing gymnosperms dating from the Carboniferous period; most are substantial trees; includes the classes Pinopsida (subdivision Pinophytina) and Ginkgopsida (subdivision Ginkgophytina) and Taxopsida (subdivision Taxophytina) which in turn include the surviving orders Coniferales and Taxales (yews) and sometimes Ginkgoales as well as extinct orders such as Cordaitales (of the Carboniferous and Permian)
    Pinophytina, Pinopsida, class Pinopsida, subdivision Pinophytina

    most conifers: in some systems classified as a class (Pinopsida) and in others as a subdivision (Pinophytina); used in some classifications for one of five subdivisions of Gymnospermophyta
    Taxophytina, Taxopsida, class Taxopsida, subdivision Taxophytina

    yews: in some systems classified as a class (Taxopsida) and in others as a subdivision (Taxophytina) used in some classifications for one of five subdivisions of Gymnospermophyta
    Ginkgophytina, Ginkgopsida, class Ginkgophytina, class Ginkgopsida, subdivision Ginkgophyta, subdivision Ginkgophytina

    ginkgos: in some systems classified as a class and in others as a subdivision; used in some classifications for one of five subdivisions of Gymnospermophyta
    Angiospermae, Anthophyta, Magnoliophyta, class Angiospermae, division Anthophyta, division Magnoliophyta

    comprising flowering plants that produce seeds enclosed in an ovary; in some systems considered a class (Angiospermae) and in others a division (Magnoliophyta or Anthophyta)
    Dicotyledonae, Dicotyledones, Magnoliopsida, class Dicotyledonae, class Dicotyledones, class Magnoliopsida

    comprising seed plants that produce an embryo with paired cotyledons and net-veined leaves; divided into six (not always well distinguished) subclasses (or superorders): Magnoliidae and Hamamelidae (considered primitive); Caryophyllidae (an early and distinctive offshoot); and three more or less advanced groups: Dilleniidae; Rosidae; Asteridae
    Magnoliidae, ranalian complex, subclass Magnoliidae

    a group of families of trees and shrubs and herbs having well-developed perianths and apocarpous ovaries and generally regarded as the most primitive extant flowering plants; contains 36 families including Magnoliaceae and Ranunculaceae; sometimes classified as a superorder
    Liliopsida, Monocotyledonae, Monocotyledones, class Liliopsida, class Monocotyledonae, class Monocotyledones

    comprising seed plants that produce an embryo with a single cotyledon and parallel-veined leaves: includes grasses and lilies and palms and orchids; divided into four subclasses or superorders: Alismatidae; Arecidae; Commelinidae; and Liliidae
    Alismatidae, subclass Alismatidae

    one of four subclasses or superorders of Monocotyledones; comprises about 500 species in 14 families of aquatic and semiaquatic herbs
    Arecidae, subclass Arecidae

    one of four subclasses or superorder of Monocotyledones; comprises about 6400 species in 5 families of trees and shrubs and terrestrial herbs and a few free-floating aquatics including: Palmae; Araceae; Pandanaceae and Lemnaceae
    Commelinidae, subclass Commelinidae

    one of four subclasses or superorders of Monocotyledones; comprises about 19,000 species in 25 families of mostly terrestrial herbs especially of moist places including: Cyperaceae; Gramineae; Bromeliaceae; and Zingiberaceae
    Caryophyllidae, subclass Caryophyllidae

    a group of families of mostly flowers having basal or central placentation and trinucleate pollen (binucleate pollen is commoner in flowering plants); contains 14 families including: Caryophyllaceae (carnations and pinks); Aizoaceae; Amaranthaceae; Batidaceae; Chenopodiaceae; Cactaceae (order Opuntiales); Nyctaginaceae; Phytolaccaceae; corresponds approximately to order Caryophyllales; sometimes classified as a superorder
    Asteridae, subclass Asteridae

    a group of mostly sympetalous herbs and some trees and shrubs mostly with 2 fused carpels; contains 43 families including Campanulales; Solanaceae; Scrophulariaceae; Labiatae; Verbenaceae; Rubiaceae; Compositae; sometimes classified as a superorder
    Rosidae, subclass Rosidae

    a group of trees and shrubs and herbs mostly with polypetalous flowers; contains 108 families including Rosaceae; Crassulaceae; Myrtaceae; Melastomaceae; Euphorbiaceae; Umbelliferae
    Hamamelidae, subclass Hamamelidae

    a group of chiefly woody plants considered among the most primitive of angiosperms; perianth poorly developed or lacking; flowers often unisexual and often in catkins and often wind pollinated; contains 23 families including the Betulaceae and Fagaceae (includes the Amentiferae); sometimes classified as a superorder
    Dilleniidae, subclass Dilleniidae

    a group of families of more or less advanced trees and shrubs and herbs having either polypetalous or gamopetalous corollas and often with ovules attached to the walls of the ovary; contains 69 families including Ericaceae and Cruciferae and Malvaceae; sometimes classified as a superorder
    Liliidae, subclass Liliidae

    one of four subclasses or superorders of Monocotyledones; comprises 17 families including: Liliaceae; Alliaceae; Amaryllidaceae; Iridaceae; Orchidaceae; Trilliaceae
    Zygomycetes, class Zygomycetes

    class of fungi coextensive with subdivision Zygomycota
    Myxomycetes, class Myxomycetes

    the class of true slime molds; essentially equivalent to the division Myxomycota
    Acrasiomycetes, class Acrasiomycetes

    cellular slime molds; in some classifications placed in kingdom Protoctista
    Oomycetes, class Oomycetes

    nonphotosynthetic fungi that resemble algae and that reproduce by forming oospores; sometimes classified as protoctists
    Chytridiomycetes, class Chytridiomycetes

    a class of mostly aquatic fungi; saprophytic or parasitic on algae or fungi or plants
    Eumycetes, class Eumycetes

    category used in some classifications: coextensive with division Eumycota
    Deuteromycetes, class Deuteromycetes

    form class; coextensive with subdivision Deuteromycota
    Basidiomycetes, class Basidiomycetes

    large class of higher fungi coextensive with subdivision Basidiomycota
    Homobasidiomycetes, subclass Homobasidiomycetes

    category used in some classification systems for various basidiomycetous fungi including e.g. mushrooms and puffballs which are usually placed in the classes Gasteromycetes and Hymenomycetes
    Heterobasidiomycetes, subclass Heterobasidiomycetes

    category used in some classification systems for various basidiomycetous fungi including rusts and smuts
    Hymenomycetes, class Hymenomycetes

    used in some classifications; usually coextensive with order Agaricales: mushrooms; toadstools; agarics; bracket fungi
    Ascomycetes, class Ascomycetes

    large class of higher fungi coextensive with division Ascomycota: sac fungi
    Euascomycetes, subclass Euascomycetes

    category not used in many classification systems
    Hemiascomycetes, class Hemiascomycetes

    class of fungi in which no ascocarps are formed: yeasts and some plant parasites
    Plectomycetes, class Plectomycetes

    class of fungi in which the fruiting body is a cleistothecium (it releases spores only on decay or disintegration)
    Pyrenomycetes, class Pyrenomycetes

    class of fungi in which the fruiting body is a perithecium; includes powdery mildews and ergot and Neurospora
    Discomycetes, subclass Discomycetes

    a large and taxonomically difficult group of Ascomycetes in which the fleshy fruiting body is disklike or cup-shaped
    Gasteromycetes, Gastromycetes, class Gasteromycetes, class Gastromycetes

    fungi in which the hymenium is enclosed until after spores have matured: puffballs; earth stars; stinkhorn fungi
    Tiliomycetes, class Tiliomycetes

    category used in some systems to comprise the two orders Ustilaginales (smuts) and Uredinales (rusts)
    Filicinae, Filicopsida, class Filicinae, class Filicopsida

    ferns
    Psilopsida, Psilotatae, class Psilopsida, class Psilotatae

    whisk ferns; comprising the family Psilotaceae or Psilotatae: vascular plants with no roots, partial if any leaf differentiation, and rudimentary spore sacs
    Equisetatae, Sphenopsida, class Equisetatae, class Sphenopsida

    horsetails and related forms
    Lycopodiate, Lycopsida, class Lycopodiate, class Lycopsida

    club mosses and related forms: includes Lycopodiales; Isoetales; Selaginellales; and extinct Lepidodendrales; sometimes considered a subdivision of Tracheophyta
    Lycopodineae, class Lycopodineae

    alternative designation for the class Lycopsida
    type of:

    taxon, taxonomic category, taxonomic group

    animal or plant group having natural relations

  6. verb

    arrange or order by classes or categories

    synonyms:
    assort, classify, separate, sort, sort out
    see moresee less

    types:

    show 15 types…
    hide 15 types…
    unitise, unitize

    separate or classify into units
    catalog, catalogue

    make an itemized list or catalog of; classify
    isolate

    separate (experiences) from the emotions relating to them
    refer

    think of, regard, or classify under a subsuming principle or with a general group or in relation to another
    reclassify

    classify anew, change the previous classification
    size

    sort according to size
    dichotomise, dichotomize

    divide into two opposing groups or kinds
    pigeonhole, stamp, stereotype

    treat or classify according to a mental stereotype
    group

    arrange into a group or groups
    grade

    determine the grade of or assign a grade to
    count, number

    put into a group
    regroup

    reorganize into new groups
    bracket

    classify or group
    chunk, collocate, lump

    group or chunk together in a certain order or place side by side
    batch

    batch together; assemble or process as a batch
    type of:

    categorise, categorize

    place into or assign to a category

  7. noun

    education imparted in a series of lessons or meetings

    “flirting is not unknown in college
    classes
    synonyms:
    course, course of instruction, course of study
    see moresee less

    types:

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    adult education

    a course (via lectures or correspondence) for adults who are not otherwise engaged in formal study
    art class

    a class in which you learn to draw or paint
    childbirth-preparation class

    a course that teaches pregnant women to use breathing and concentration and exercise techniques to use during labor
    correspondence course

    a course offered (by mail) by a correspondence school
    course of lectures

    a series of lectures dealing with a subject
    directed study

    a course of study that is supervised and controlled by a specialist in the subject
    elective, elective course

    a course that the student can select from among alternatives
    extension course

    a course offered as part of an extension service
    home study

    a course of study carried out at home rather than in a classroom
    industrial arts

    a course in the methods of using tools and machinery as taught in secondary schools and technical schools
    orientation, orientation course

    a course introducing a new situation or environment
    propaedeutic, propaedeutics

    a course that provides an introduction to an art or science (or to more advanced study generally)
    refresher, refresher course

    a course that reviews and updates a topic for those who have not kept abreast of developments
    required course

    a course that all students are required to take
    seminar

    a course offered for a small group of advanced students
    shop, shop class

    a course of instruction in a trade (as carpentry or electricity)
    workshop

    a brief intensive course for a small group; emphasizes problem solving
    life class

    an art class using a live human model
    type of:

    didactics, education, educational activity, instruction, pedagogy, teaching

    the activities of educating or instructing; activities that impart knowledge or skill

  8. noun

    elegance in dress or behavior

    “she has a lot of
    class
    see moresee less

    type of:

    elegance

    a refined quality of gracefulness and good taste

  9. noun

    a league ranked by quality

    “he played baseball in
    class D for two years”
    synonyms:
    division
    see moresee less

    type of:

    conference, league

    an association of sports teams that organizes matches for its members

Word Family