period - definition and synonyms

noun [countable] 

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  1. 1
    an amount of time during which something happens

    The long dry period ended with torrential rain.

    period of:

    A decision has to be made within a period of three months.

    period of time:

    They reached these conclusions in a relatively short period of time.

    1. a.
      a particular amount of time in history

      Their collection is confined solely to the Roman period.

    2. b.
      a particular part of someone’s life or career

      This is described as the artist’s angry period.

    3. c.
      a division in a school day when a particular subject is taught

      They have another period of science this afternoon.

  2. 2
    the time about once a month when a woman who is not pregnant menstruates (=loses blood)

    I realized I might be pregnant when I missed my period.

  3. 3
    spoken used for emphasis to show that there is no more to be said about something

    You are not going out tonight, period.

  4. 4
    American a full stop