Dictionary > English Dictionary > Definition, synonym and antonym of ACT
Meaning of act by Wiktionary Dictionary




    1. Australian Capital Territory, a federal territory of Australia .
    2. A certain standardized college admissions test in the United States, originally called the American College Test.
      • ACT ( test ) on Wikipedia .


    • ATC
    • cat, Cat, CAT
    • tac, TAC
    • TCA


    By Wiktionary ( 2009/11/16 00:12 UTC Version )


    act. ( comparative more act., superlative most act. )

    1. Abbreviation of acting .
    2. ( grammar ) Abbreviation of active .
    3. Abbreviation of actual .


    act. ( already plural: in one sense ; plural: of singular senses *acts. )

    1. ( plural: ) Abbreviation of activities .
    2. ( singular ) Abbreviation of actor .
    3. ( singular ) Abbreviation of actuary .

    See also

    • The New Penguin Dictionary of Abbreviations: from A to zz, Rosalind Fergusson ( © Penguin Books, 2000 ), page 11


    • ATC
    • cat, Cat, CAT
    • tac, TAC
    • TCA

Explanation of act by Wordnet Dictionary


    1. behave in a certain manner

    2. You should act like an adult
      The dog acts ferocious, but he is really afraid of people
    3. pretend to have certain qualities or state of mind

    4. He acted the idiot
    5. discharge one's duties

    6. She acts as the chair
      In what capacity are you acting?
    7. play a role or part

    8. She wants to act Lady Macbeth, but she is too young for the role
    9. perform on a stage or theater

    10. She acts in this play
      He acted in `Julius Caesar'
    11. behave unnaturally or affectedly

    12. She's just acting
    13. perform an action, or work out or perform ( an action )

    14. think before you act
      The governor should act on the new energy bill
      The nanny acted quickly by grabbing the toddler and covering him with a wet towel
    15. be engaged in an activity, often for no particular purpose other than pleasure

    16. have an effect or outcome

    17. How does your idea work in practice?
      The breaks of my new car act quickly
    18. be suitable for theatrical performance

    19. This scene acts well
    1. something that people do or cause to happen

    2. a legal document codifying the result of deliberations of a committee or society or legislative body

    3. a short theatrical performance that is part of a longer program

    4. he did his act three times every evening
    5. a subdivision of a play or opera or ballet

    6. a manifestation of insincerity

    7. he put on quite an act for her benefit

    Definition of act by GCIDE Dictionary


    1. Act ( ăkt ), n. [L. actus, fr. agere to drive, do: cf. F. acte. See Agent.]
      1. That which is done or doing; the exercise of power, or the effect, of which power exerted is the cause; a performance; a deed.

      That best portion of a good man's life,

      His little, nameless, unremembered acts

      Of kindness and of love. Wordsworth.

      Hence, in specific uses: The result of public deliberation; the decision or determination of a legislative body, council, court of justice, etc.; a decree, edit, law, judgment, resolve, award; as, “an act of Parliament, or of Congress”. A formal solemn writing, expressing that something has been done. Abbott. A performance of part of a play; one of the principal divisions of a play or dramatic work in which a certain definite part of the action is completed. A thesis maintained in public, in some English universities, by a candidate for a degree, or to show the proficiency of a student.

      2. A state of reality or real existence as opposed to a possibility or possible existence. [Obs.]

      The seeds of plants are not at first in act, but in possibility, what they afterward grow to be. Hooker.

      3. Process of doing; action. In act, in the very doing; on the point of ( doing ). “In act to shoot.” Dryden.

      This woman was taken . . . in the very act. John viii. 4.

      Act of attainder. ( Law ) See Attainder. -- Act of bankruptcy ( Law ), an act of a debtor which renders him liable to be adjudged a bankrupt. -- Act of faith. ( Ch. Hist. ) See Auto-da-Fé. -- Act of God ( Law ), an inevitable accident; such extraordinary interruption of the usual course of events as is not to be looked for in advance, and against which ordinary prudence could not guard. -- Act of grace, an expression often used to designate an act declaring pardon or amnesty to numerous offenders, as at the beginning of a new reign. -- Act of indemnity, a statute passed for the protection of those who have committed some illegal act subjecting them to penalties. Abbott. -- Act in pais, a thing done out of court ( anciently, in the country ), and not a matter of record.

      Syn. -- See Action.

    2. Act, v. t. [imp. & p. p. Acted; p. pr. & vb. n. Acting.] [L. actus, p. p. of agere to drive, lead, do; but influenced by E. act, n.]
      1. To move to action; to actuate; to animate. [Obs.]

      Self-love, the spring of motion, acts the soul. Pope.

      2. To perform; to execute; to do. [Archaic]

      That we act our temporal affairs with a desire no greater than our necessity. Jer. Taylor.

      Industry doth beget by producing good habits, and facility of acting things expedient for us to do. Barrow.

      Uplifted hands that at convenient times

      Could act extortion and the worst of crimes. Cowper.

      3. To perform, as an actor; to represent dramatically on the stage.

      4. To assume the office or character of; to play; to personate; as, “to act the hero”.

      5. To feign or counterfeit; to simulate.

      With acted fear the villain thus pursued. Dryden.

      To act a part, to sustain the part of one of the characters in a play; hence, to simulate; to dissemble. -- To act the part of, to take the character of; to fulfill the duties of.

    3. Act, v. i.
      1. To exert power; to produce an effect; as, “the stomach acts upon food”.

      2. To perform actions; to fulfill functions; to put forth energy; to move, as opposed to remaining at rest; to carry into effect a determination of the will.

      He hangs between, in doubt to act or rest. Pope.

      3. To behave or conduct, as in morals, private duties, or public offices; to bear or deport one's self; as, “we know not why he has acted so”.

      4. To perform on the stage; to represent a character.

      To show the world how Garrick did not act. Cowper.

      To act as or To act for, to do the work of; to serve as. -- To act on, to regulate one's conduct according to. -- To act up to, to equal in action; to fulfill in practice; as, “he has acted up to his engagement or his advantages”.