Fly describes moving through the air, like birds that fly in the sky, or getting something accepted, like your silly excuse that’s not going to fly with your history teacher.

Fly means “move through the air with wings,” and it describes the movement of birds, airplanes, kites, and other things that float or move of their own accord above the ground. There are many other meanings of fly, including a buzzing insect with wings, a baseball hit high across a field, and the zipper on a pair of pants. As an adjective, fly means cool, though there’s no guarantee it’s still fly to use it.

Definitions of fly
  1. verb

    travel through the air; be airborne

    “Man cannot
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    fly low

    fly in high wind

    fly in a flock
    fly on

    continue flying

    fly upwards or high in the sky

    hang in the air; fly or be suspended above

    be motionless, in suspension
    type of:

    go, locomote, move, travel

    change location; move, travel, or proceed, also metaphorically

  2. verb

    cause to fly or float

    fly a kite”
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    fly a kite

  3. verb

    display in the air or cause to float

    fly a kite”
    “All nations
    fly their flags in front of the U.N.”
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    type of:


    make visible or noticeable

  4. verb

    operate an airplane

    “The pilot
    flew to Cuba”
    aviate, pilot
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    fly blind

    fly an airplane solely by relying on instruments
    fly contact

    fly a plane by using visible landmarks or points of reference

    fly alone, without a co-pilot or passengers
    test fly

    test a plane

    fly a jet plane

    fly in or as if in a glider plane
    hydroplane, seaplane

    glide on the water in a hydroplane

    ride in a hot-air balloon
    flat-hat, hedgehop

    fly very close to the ground
    hang glide, soar

    fly by means of a hang glider

    soar or fly like a kite
    sailplane, soar

    fly a plane without an engine
    type of:

    control, operate

    handle and cause to function

  5. verb

    travel in an airplane

    “she is
    flying to Cincinnati tonight”
    “Are we driving or

    aviate, pilot

    operate an airplane
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    travel on an overnight flight
    type of:


    undergo transportation as in a vehicle

  6. verb

    travel over (an area of land or sea) in an aircraft

    “Lindbergh was the first to
    fly the Atlantic”


    travel through the air; be airborne
    aviate, pilot

    operate an airplane
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    type of:

    journey, travel

    travel upon or across

  7. verb

    transport by aeroplane

    fly flowers from the Caribbean to North America”

    aviate, pilot

    operate an airplane
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    airlift, lift

    fly people or goods to or from places not accessible by other means
    type of:

    carry, transport

    move while supporting, either in a vehicle or in one’s hands or on one’s body

  8. noun

    two-winged insects characterized by active flight

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    Musca domestica, house fly, housefly

    common fly that frequents human habitations and spreads many diseases
    glossina, tsetse, tsetse fly, tzetze, tzetze fly

    bloodsucking African fly; transmits sleeping sickness etc.
    blow fly, blowfly

    large usually hairy metallic blue or green fly; lays eggs in carrion or dung or wounds
    Sarcophaga carnaria, flesh fly

    fly whose larvae feed on carrion or the flesh of living animals
    tachina fly

    bristly fly whose larvae live parasitically in caterpillars and other insects; important in control of noxious insects

    any of various large flies that annoy livestock
    bee fly

    hairy nectar-eating fly that resembles a bee; larvae are parasitic on larvae of bees and related insects
    Haematobia irritans, horn fly

    small black European fly introduced into North America; sucks blood from cattle especially at the base of the horn
    Calliphora vicina, bluebottle

    blowfly with iridescent blue body; makes a loud buzzing noise in flight
    greenbottle, greenbottle fly

    blowfly with brilliant coppery green body

    stout-bodied hairy dipterous fly whose larvae are parasites on humans and other mammals
    warble fly

    hairy bee-like fly whose larvae produce lumpy abscesses (warbles) under the skin of cattle
    cleg, clegg, horse fly, horsefly

    large swift fly the female of which sucks blood of various animals
    type of:

    dipteran, dipteron, dipterous insect, two-winged insects

    insects having usually a single pair of functional wings (anterior pair) with the posterior pair reduced to small knobbed structures and mouth parts adapted for sucking or lapping or piercing

  9. noun

    fisherman’s lure consisting of a fishhook decorated to look like an insect

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    dry fly

    a fly (fisherman’s lure) that skims the surface of the water
    streamer fly

    an artificial fly that has wings extending back beyond the crook of the fishhook
    wet fly

    fisherman’s fly that floats under the surface of the water
    type of:

    fish lure, fisherman’s lure

    (angling) any bright artificial bait consisting of plastic or metal mounted with hooks and trimmed with feathers

  10. noun

    (baseball) a hit that flies up in the air

    fly ball
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    a very long fly ball
    pop fly, pop-fly, pop-up

    a short high fly ball
    line drive, liner

    (baseball) a hit that flies straight out from the batter

    (baseball) a fly ball hit a short distance into the outfield
    Texas leaguer

    (baseball) a fly ball that falls between and infielder and an outfielder
    type of:

    hit, hitting, striking

    the act of contacting one thing with another

  11. verb

    hit a fly

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    type of:


    cause to move by striking

  12. verb

    move quickly or suddenly

    flew about the place”
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    type of:


    move so as to change position, perform a nontranslational motion

  13. verb

    run away quickly

    flee, take flight
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    make a rupture in the ranks of the enemy or one’s own by quitting or fleeing

    run away in a stampede
    abscond, absquatulate, bolt, decamp, go off, make off, run off

    run away; usually includes taking something or somebody along
    elope, run off

    run away secretly with one’s beloved
    break loose, escape, get away

    run away from confinement

    retreat at full speed
    defect, desert

    desert (a cause, a country or an army), often in order to join the opposing cause, country, or army
    break, break away, break out

    move away or escape suddenly
    escape from, shake, shake off, throw off

    get rid of

    run off without paying a debt
    bilk, elude, evade

    escape, either physically or mentally

    move smoothly and easily
    run away

    escape from the control of

    desert one’s party or group of friends, for example, for one’s personal advantage
    escape, get away

    remove oneself from a familiar environment, usually for pleasure or diversion
    type of:

    break away, bunk, escape, fly the coop, head for the hills, hightail it, lam, run, run away, scarper, scat, take to the woods, turn tail

    flee; take to one’s heels; cut and run

  14. verb

    be dispersed or disseminated

    “Rumors and accusations are
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    type of:

    go, locomote, move, travel

    change location; move, travel, or proceed, also metaphorically

  15. verb

    change quickly from one emotional state to another

    fly into a rage”
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    type of:


    undergo a change; become different in essence; losing one’s or its original nature

  16. verb

    pass away rapidly

    flies like an arrow”
    fell, vanish

    vanish, vaporize

    decrease rapidly and disappear

  17. verb

    decrease rapidly and disappear

    vanish, vaporize

    fell, vanish

    pass away rapidly
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    type of:

    decrease, diminish, fall, lessen

    decrease in size, extent, or range

  18. noun

    flap consisting of a piece of canvas that can be drawn back to provide entrance to a tent

    fly sheet, rainfly, tent flap, tent-fly
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    type of:


    any broad thin and limber covering attached at one edge; hangs loose or projects freely

  19. noun

    an opening in a garment that is closed by a zipper or by buttons concealed under a fold of cloth

    fly front
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    type of:


    a vacant or unobstructed space that is man-made

  20. adjective

    (British informal) not to be deceived or hoodwinked


    alert, watchful

    engaged in or accustomed to close observation

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