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  1. act
    IPA[akt]
  2. verb

    • 1. take action; do something:

      they urged Washington to act governments must act to reduce pollution
      Synonym : take action, take steps, take measures, take the initiative, move, make a move, react, do something, proceed, go ahead, make progress, make headway, be active, be employed, be busy, get moving
    • 2. take action according to or in the light of:

      I shall certainly act on his suggestion
    • 3. take action in order to bring about:

      one's ability to act for community change
      Synonym : take action, take steps, take measures, take the initiative, move, make a move, react, do something, proceed, go ahead, make progress, make headway, be active, be employed, be busy, get moving
    • 4. represent (someone) on a contractual, legal, or paid basis:

      he chose an attorney to act for him
    • 5. be motivated by:

      you acted from greed
    • 6. behave in the way specified:

      they followed the man who was seen acting suspiciously he acts as if he owned the place
      Synonym : behave, function, react, perform, conduct oneself, acquit oneself, bear oneself, comport oneself, deport oneself
    • 7. behave in the manner of:

      try to act like civilized adults
    • 8. fulfill the function or serve the purpose of:

      they need volunteers to act as foster parents
      Synonym : operate, work, take effect, function, serve, be efficacious
    • 9. have the effect of:

      a five-year sentence will act as a deterrent
    • 10. take effect; have a particular effect:

      bacteria act on proteins and sugar
    • 11. perform a fictional role in a play, movie, or television production:

      she acted in her first professional role at the age of six
      Synonym : perform, play, play a part, take part, be an actor, be an actress, be one of the cast, appear, tread the boards
    • 12. perform (a part or role):

      he acted the role of the dragon he got the chance to act out other people's jobs
    • 13. behave so as to appear to be; pretend to be:

      I acted dumb at first
    • 14. perform a narrative as if it were a play:

      encouraging students to act out the stories
    • 15. express repressed or unconscious feelings in overt behavior:

      the impulses of hatred and killing which some human beings act out

    noun

  3. Variation

    • n.: noun: act, plural noun: acts

    • v.: verb: act, 3rd person present: acts, gerund or present participle: acting, past tense: acted, past participle: acted

    • abbreviation

      American College Test.

      Australian Capital Territory.

    • A trademark for a standardized college entrance examination.
    • verb

      take action; do something:

      take action according to or in the light of:

    • noun

      a thing done; a deed:

      a New Testament book immediately following the Gospels and relating the history of the early Church.

    • abbreviation

      advance corporation tax.

      Australian Capital Territory.

    • noun

      the art or occupation of performing in plays, movies, or television productions:
    • adjective

      temporarily doing the duties of another person:
    • a New Testament book immediately following the Gospels and relating the history of the early Church.
    • noun

      the art or occupation of performing fictional roles in plays, films, or television:
    • adjective

      temporarily doing the duties of another person:
    • (of a thing) fail to function properly

      behave badly

    • noun

      an act regulating stamp duty (a tax on the legal recognition of documents).

      an act of the British Parliament in 1765 that exacted revenue from the American colonies by imposing a stamp duty on newspapers and legal and commercial documents. Colonial opposition led to the act's repeal in 1766 and helped encourage the revolutionary movement against the Crown.

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