have one’s act together


  1. anything done, being done, or to be done; deed; performance: a heroic act.
  2. the process of doing: caught in the act.
  3. a formal decision, law, or the like, by a legislature, ruler, court, or other authority; decree or edict; statute; judgment, resolve, or award: an act of Congress.
  4. an instrument or document stating something done or transacted.
  5. one of the main divisions of a play or opera: the second act of Hamlet.
  6. a short performance by one or more entertainers, usually part of a variety show or radio or television program.
  7. the personnel of such a group: The act broke up after 30 years.
  8. false show; pretense; feint: The politician’s pious remarks were all an act.
  9. Philosophy. (in scholasticism)
    1. activity in process; operation.
    2. the principle or power of operation.
    3. form as determining essence.
    4. a state of realization, as opposed to potentiality.

verb (used without object)

  1. to do something; exert energy or force; be employed or operative: He acted promptly in the emergency.
  2. to reach, make, or issue a decision on some matter: I am required to act before noon tomorrow.
  3. to operate or function in a particular way; perform specific duties or functions: to act as manager.
  4. to produce an effect; perform a function: The medicine failed to act.
  5. to behave or conduct oneself in a particular fashion: to act well under all conditions.
  6. to pretend; feign: Act interested even if you’re bored.
  7. to perform as an actor: He acted in three plays by Molière.
  8. to be capable of being performed: His plays don’t act well.
  9. to serve or substitute (usually followed by for): In my absence the assistant manager will act for me.

verb (used with object)

  1. to represent (a fictitious or historical character) with one’s person: to act Macbeth.
  2. to feign; counterfeit: to act outraged virtue.
  3. to behave as: He acted the fool.
  4. Obsolete. to actuate.

Verb Phrases

  1. act on/upon,
    1. to act in accordance with; follow: He acted on my advice.
    2. to have an effect on; affect: The stirring music acted on the emotions of the audience.
  2. act out,
    1. to demonstrate or illustrate by pantomime or by words and gestures: The party guests acted out stories for one another.
    2. Psychology.to give overt expression to (repressed emotions or impulses) without insightful understanding: The patients acted out early traumas by getting angry with the analyst.
  3. act up,
    1. to fail to function properly; malfunction: The vacuum cleaner is acting up again.
    2. to behave willfully: The children always act up in school the day before a holiday.
    3. to become painful or troublesome, especially after a period of improvement or remission: My arthritis is acting up again this morning.
  4. get/have one’s act together, Informal. to organize one’s time, job, resources, etc., so as to function efficiently: The new administration is still getting its act together.
  1. act funny, to display eccentric or suspicious behavior.
  2. act one’s age, to behave in a manner appropriate to one’s maturity: We children enjoyed our uncle because he didn’t always act his age.
  3. clean up one’s act, Informal. to begin adhering to more acceptable practices, rules of behavior, etc.: The factory must clean up its act and treat its employees better.

abbreviation for

  1. Australian Capital Territory
  2. (formerly in Britain) advance corporation tax

n acronym for

  1. (in New Zealand) Association of Consumers and Taxpayers: a small political party of the right


  1. something done or performed; a deed
  2. the performance of some physical or mental process; action
  3. (capital when part of a name) the formally codified result of deliberation by a legislative body; a law, edict, decree, statute, etc
  4. (often plural) a formal written record of transactions, proceedings, etc, as of a society, committee, or legislative body
  5. a major division of a dramatic work
    1. a short performance of skill, a comic sketch, dance, etc, esp one that is part of a programme of light entertainment
    2. those giving such a performance
  6. an assumed attitude or pose, esp one intended to impress
  7. philosophy an occurrence effected by the volition of a human agent, usually opposed at least as regards its explanation to one which is causally determinedCompare event (def. 4)


  1. (intr) to do something; carry out an action
  2. (intr) to function in a specified way; operate; reacthis mind acted quickly
  3. to perform (a part or role) in a play, etc
  4. (tr) to present (a play, etc) on stage
  5. (intr; usually foll by for or as) to be a substitute (for); function in place (of)
  6. (intr foll by as) to serve the function or purpose (of)the glass acted as protection
  7. (intr) to conduct oneself or behave (as if one were)she usually acts like a lady
  8. (intr) to behave in an unnatural or affected way
  9. (copula) to pose as; play the part ofto act the fool
  10. (copula) to behave in a manner appropriate to (esp in the phrase act one’s age)
  11. (copula) not standard to seem or pretend to beto act tired
  12. clean up one’s act to start to behave in a responsible manner
  13. get in on the act informal to become involved in a profitable undertaking or advantageous situation in order to share in the benefits
  14. get one’s act together informal to become organized or prepared

mid-15c., “to act upon or adjudicate” a legal case; 1590s in the theatrical sense, from Latin actus, past participle of agere (see act (n.)). To act up “be unruly” is from 1903. To act out “behave anti-socially” (1974) is from psychiatric sense of “expressing one’s unconscious impulses or desires.” Related: Acted; acting.


late 14c., “a thing done,” from Old French acte “(official) document,” and directly from Latin actus “a doing, a driving, impulse; a part in a play, act,” and actum “a thing done,” originally a legal term, both from agere “to do, set in motion, drive, urge, chase, stir up,” from PIE root *ag- “to drive, draw out or forth, move” (cf. Greek agein “to lead, guide, drive, carry off,” agon “assembly, contest in the games,” agogos “leader;” Sanskrit ajati “drives,” ajirah “moving, active;” Old Norse aka “to drive;” Middle Irish ag “battle”).

Theatrical (“part of a play,” 1510s) and legislative (early 15c.) senses of the word also were in Latin. Meaning “display of exaggerated behavior” is from 1928. In the act “in the process” is from 1590s, perhaps originally from the 16c. sense of the act as “sexual intercourse.” Act of God “uncontrollable natural force” recorded by 1726.

An act of God is an accident which arises from a cause which operates without interference or aid from man (1 Pars. on Cont. 635); the loss arising wherefrom cannot be guarded against by the ordinary exertions of human skill and prudence so as to prevent its effect. [William Wait, “General Principles of the Law,” Albany, 1879]

In addition to the idioms beginning with act

  • act of faith
  • act of God
  • act on
  • act one’s age
  • act out
  • act up
  • act upon

also see:

  • catch in the act
  • clean up (one’s act)
  • do a disappearing act
  • get in the act
  • get one’s act together
  • hard (tough) act to follow
  • high-wire act
  • in the act of
  • put on an act

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