100 years is called a century. The computer, the television, and video games were all invented in the twentieth century. People are now wondering what the twenty-first century holds for us.

The noun century comes from the Latin word centuria, which was a group of 100, particularly a group of 100 Roman soldiers (one of 16 such groups in a Roman legion). The word today still can refer to 100 of something. In sports, a century is a score of 100 in a game of cricket. A race of 100 yards or 100 miles is also sometimes called a century. In slang, century can also mean a 100 dollar bill.

Definitions of century
  1. noun

    a period of 100 years

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    the 15th century in Italian art and literature
    twentieth century

    the century from 1901 to 2000
    type of:

    period, period of time, time period

    an amount of time

  2. noun

    ten 10s

    100, C, hundred, one C
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    type of:

    large integer

    an integer equal to or greater than ten

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