- An act is defined as an action or something which is done.
Drawing, eating and pretending you are someone else are all examples of an act.
- The definition of act means to do something.
To sing, to dance and to swim are each an example of to act.
Dancing is an example of to act.
- a thing done; deed
- an action; doing: caught in the act of stealing
- a decision (of a court, legislature, etc.); law; decree
- a document formally stating what has been done, made into law, etc.
- one of the main divisions of a drama or opera
- any of the separate performances on a variety program
- a show of feeling or behavior that is not sincere and is put on just for effect
Origin of actMiddle English ; from Old French acte ; from Classical Latin actus, a doing or moving, actum, thing done, past participle of agere, to do ; from Indo-European base an unverified form a-, to drive, do from source Classical Greek agein, to lead
- to play the part of
- to perform in (a play)
- to behave in a way suitable for: don't act the child
Origin of actME acten < L actus: see actthe
- to perform in a play, film, etc.; play a role
- to behave as though playing a role
- to be suited to performance: said of a play or a role
- to behave; comport oneself: act like a lady
- to do something: we must act now to forestall disaster
- to serve or function: the fence acts as a barrier
- to serve as spokesman or substitute (for): he's acting for the committee
- to have an effect: acids act on metal
- to appear to be: he acted very angry
act up☆ Informal
- to be playful
- to misbehave
- to become inflamed, painful, etc.
clean up one's act☆
get one's act together☆
- The process of doing or performing something: the act of thinking.
- a. Something done or performed; a deed: a charitable act.b. Law Something done that has legal significance: a criminal act.
- A statute or other law formally adopted by a legislative body: an act of Congress.
- A formal written record of proceedings or transactions.
- One of the major divisions of a play, opera, or film.
- a. A performance or entertainment usually forming part of a longer presentation: a juggling act; a magic act.b. The actor or actors presenting such a performance: joined the act in Phoenix.
- A manifestation of intentional or unintentional insincerity; a pose: put on an act.
verbact·ed, act·ing, acts
- To play the part of; assume the dramatic role of: She plans to act Ophelia in summer stock.
- To perform (a role) on the stage: act the part of the villain.
- a. To behave like or pose as; impersonate: Don't act the fool.b. To behave in a manner suitable for: Act your age.
- To behave or comport oneself: She acts like a born leader.
- To perform in a dramatic role or roles.
- To be suitable for theatrical performance: This scene acts well.
- To behave affectedly or unnaturally; pretend.
- To appear or seem to be: The dog acted ferocious.
- To carry out an action: We acted immediately. The governor has not yet acted on the bill.
- To operate or function in a specific way: His mind acts quickly.
- To serve or function as a substitute for another: A coin can act as a screwdriver.
- To produce an effect: waited five minutes for the anesthetic to act.
Origin of actMiddle English, from Old French acte, from Latin āctus, a doing, and āctum, a thing done, both from past participle of agere, to drive, do; see ag- in Indo-European roots.
(countable and uncountable, plural acts)
- (countable) Something done, a deed.
- an act of goodwill
- (countable) A product of a legislative body, a statute.
- The process of doing something.
- He was caught in the act.
- (countable) A formal or official record of something done.
- (countable) A division of a theatrical performance.
- The pivotal moment in the play was in the first scene of the second act.
- (countable) A performer or performers in a show.
- Which act did you prefer? The soloist or the band?
- (countable) Any organized activity.
- (countable) A display of behaviour.
- A thesis maintained in public, in some English universities, by a candidate for a degree, or to show the proficiency of a student.
(third-person singular simple present acts, present participle acting, simple past and past participle acted)
- (intransitive) To do something.
- If you don't act soon, you will be in trouble.
- Industry doth beget by producing good habits, and facility of acting things expedient for us to do.
- Uplifted hands that at convenient times / Could act extortion and the worst of crimes.
- (intransitive) To perform a theatrical role.
- I started acting at the age of eleven in my local theatre.
- (intransitive) To behave in a certain way.
- He's acting strangely - I think there's something wrong with him.
- (copulative) To convey an appearance of being.
- He acted unconcerned so the others wouldn't worry.
- (intransitive, construed with on or upon) To have an effect (on).
- High-pressure oxygen acts on the central nervous system and may cause convulsions or death.
- Gravitational force acts on heavy bodies.
- To play (a role).
- He's been acting Shakespearean leads since he was twelve.
- To feign.
- He acted the angry parent, but was secretly amused.
- (mathematics, intransitive, construed with on or upon, of a group) To map via a homomorphism to a group of automorphisms (of).
- This group acts on the circle, so it can't be left-orderable!
act - Computer Definition
A very popular customer relationship management (CRM) application for Windows from the Sage Group (www.act.com). Officially titled with an exclamation point and also available for Lotus Notes, reps use ACT! to review the notes they previously took along with their customers' e-mail messages and Facebook profiles. A Mac version, now discontinued, was offered earlier. ACT! integrates with popular applications and enables customer reps to access the data simultaneously. Sage Mobile for ACT! supports smartphones and PDAs. Additional services are used to extract prospect lists for generating new customers. Originally a DOS-only program for contact names, ACT! debuted in 1987 from Conductor Software, later renamed Contact Software International. Although ACT!'s ownership changed several times, it evolved into a comprehensive application for the sales professional to organize and track customer details. The product moved from Contact Software to Symantec to SalesLogix, which was later renamed Interact Commerce. In 2002, the Best Software division of the Sage Group acquired Interact.