act

English · Română · Thesaurus

AI In plain words

Writing a short explanation…

Written by a house AI from the entry below, in your language. The entry itself is the source.

ACT¹

proper noun A.C.T. · A. C. T.

  1. abbreviation, initialism Initialism of the Australian Capital Territory: a federal territory of Australia. Osteoporosis Australia is calling for the 'no hat, no play' policy in school playgrounds to be reassessed in the ACT and Tasmania, because children are not getting enough sunlight.
  2. abbreviation, initialism Initialism of American College Test
  3. abbreviation, initialism Initialism of Association of Consumers and Taxpayers, a political party of New Zealand.
  4. New Zealand ACT New Zealand, a liberal conservative political party in New Zealand.

noun ACTs · A.C.T. · A. C. T.

  1. countable An instance of a certain standardized college admissions test in the United States, originally called the American College Test.
  2. abbreviation, acronym, uncountable Acronym of acceptance and commitment therapy

act²

  • /ækt/ Australia, UK, US
  • [ækt] Australia, UK, US
  • /ækt/ British, Canada, Northern England
  • [akt] British, Canada, Northern England
  • /æk/ African American Vernacular English

Rhymes with -ækt

Where it comes from

From Middle English acte, from Old French acte, from Latin ācta (“register of events”), plural of āctum (“decree, law”), from agere (“to do, to act”), ultimately from Proto-Indo-European *h₂éǵeti. Compare German Akte (“file”). Partially displaced deed, from Old English dǣd (“act, deed”).

noun acts

  1. countable Something done, a deed. an act of goodwill

    Similar: deed

  2. obsolete, uncountable Actuality. The seeds of plants are not at first in act, but in possibility, what they afterward grow to be.
  3. countable, uncountable Something done once and for all, as distinguished from a work.
  4. countable A product of a legislative body, a statute. But was it responsible governance to pass the Longitude Act without other efforts to protect British seamen? Or might it have been subterfuge—a disingenuous attempt to shift attention away from the realities of their life at sea.

    Similar: statute

  5. countable (In the United States) A legislative proposal, a bill that has not yet become law. Under current law, employers can drag out the union election process... Under the PRO Act, workers and the NLRB set union election procedures. The employer is not involved.
  6. countable, uncountable The process of doing something. He was caught in the act of stealing.
  7. countable A formal or official record of something done.
  8. countable A division of a theatrical performance. “H'm !” he said, “so, so—it is a tragedy in a prologue and three acts. I am going down this afternoon to see the curtain fall for the third time on what […] will prove a good burlesque ; but it all began dramatically enough. It was last Saturday […] that two boys, playing in the little spinney just
  9. countable A performer or performers in a show. Which act did you prefer? The soloist or the band?
  10. countable Any organized activity. The minute you let it be known you're planning a sales campaign everybody wants to get into the act.
  11. countable A display of behaviour.
  12. countable A display of behaviour meant to deceive. to put on an act
  13. countable, uncountable A thesis maintained in public, in some English universities, by a candidate for a degree, or to show the proficiency of a student.
  14. abbreviation, countable, ellipsis, uncountable Ellipsis of act of parliament
  15. European Union, countable, uncountable A regulation (see Usage notes).

Similar: pretense

verb acts · acting · acted · act

  1. intransitive To do something. If you don’t act soon, you will be in trouble.
  2. obsolete, transitive To do (something); to perform. that we act our temporal affairs with a deſire no greater than our neceſſity
  3. intransitive To perform a theatrical role. I started acting at the age of eleven in my local theatre.
  4. intransitive Of a play: to be acted out (well or badly). But whatever types he assumes, the need to have a good play which acts delightfully well before the audience, and to their delectation, is the dominant thrust. If the play acts well, the director gets the credits.
  5. intransitive To behave in a certain manner for an indefinite length of time. A dog which acts aggressively is likely to bite.
  6. copulative To convey an appearance of being. He acted unconcerned so the others wouldn’t worry.
  7. intransitive To do something that causes a change binding on the doer. act on behalf of John
  8. 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.
  9. transitive To play (a role). He’s been acting Shakespearean leads since he was twelve.
  10. transitive To feign. He acted the angry parent, but was secretly amused.
  11. intransitive To carry out work as a legal representative in relation to a particular legal matter. A lawyer cannot act until they have been formally instructed by their client.
  12. intransitive, construed with on or upon, of an algebraic structure To possess an action onto (some other structure). Examples include the group action of a group on a set, the action of a ring on a module by scalar multiplication, and the action of a group or algebra on a vector space via a representation. This group acts on the circle, so it can't be left-orderable!
  13. obsolete, transitive To move to action; to actuate; to animate. Self-love, the spring of motion, acts the soul.
  14. Scotland, obsolete, transitive To enact; to decree.

act³

  • /ækt/ Australia, UK, US
  • [ækt] Australia, UK, US
  • /ækt/ British, Canada, Northern England
  • [akt] British, Canada, Northern England
  • /æk/ African American Vernacular English

Rhymes with -ækt

Where it comes from

Clipping of actually.

adverb more act · most act

  1. Internet, abbreviation, clipping Clipping of actually james did u act enjoy that juice? looked like u were gagging icl

Act⁴

noun Acts

  1. abbreviation, ellipsis Ellipsis of Act of Parliament

Thesaurus

Closest in meaning: work, number, process, operation, represent, enactment, behave, routine, move, playact, turn, bit, do, pretend, roleplay, dissemble

noun

Similar: pretense

Translations

Every language

noun display of behaviour

हिन्दीव्यवहार vyavhār
Kiswahilitenda
Portuguêsato
Françaisacte
DeutschSpiel, Auftreten, Handeln
Italianoscena, messinscena
Ελληνικάπράξη práxi
Русскийигра́ igrá, притво́рство pritvórstvo

noun deed

Españolacto
한국어행위 haeng'wi, 행동 haengdong
日本語行為 kōi, 行動 kōdō
中文作為 /作为 zuòwéi, 行為 /行为 xíngwéi
हिन्दीकार्य kārya, काम kām, कृत्य kŕtya, कृति kŕti, कर्म karm
Kiswahilikitendo
Portuguêsato
Françaisacte
DeutschHandlung, Tat, Akt
Italianoatto
Ελληνικάπράξη práxi
Românăact
Русскийде́йствие déjstvije, акт akt, посту́пок postúpok, де́ло délo
Tiếng Việthành vi
العربيةعَمَل ʕamal
עבריתפעולה \ פְּעֻלּה p'ulá, מַעֲשֶׂה ma'asé

noun state of existence

Kiswahilitenda
Portuguêsato
Françaisacte

noun statute

한국어법령 beomnyeong
日本語法令 hōrei
中文法令 fǎlìng, 法例 fǎlì
हिन्दीअधिनियम adhiniyam
Kiswahilitenda
Portuguêslei
Françaisloi
DeutschGesetz
Italianolegge
Ελληνικάδιάβημα diávima, ενέργεια enérgeia
Românălege
Русскийзако́н zakón
العربيةقَانُون qānūn
עבריתחק ḥok

noun process of doing

Españolacto
हिन्दीकार्य kārya
Kiswahilitenda
Portuguêsato, ação
Françaisacte, action
DeutschAkt, Handlung
Italianoatto
Ελληνικάπράξη práxi
Русскийде́йствие déjstvije, акт akt, де́яние déjanije, посту́пок postúpok
עבריתאקט akt

noun formal record of something done

Españolhecho
हिन्दीअधिनियम adhiniyam
Kiswahilitenda
Portuguêsata
Françaisacte
DeutschAkte
Ελληνικάπράξη práxi
Русскийакт akt, докуме́нт dokumént

noun drama: division of theatrical performance

Españolacto
한국어막 mak
日本語幕 maku
中文幕 mù
हिन्दीनाटक nāṭak
Kiswahilisehemu
Portuguêsato
Françaisacte
DeutschAkt
Italianoatto, numero
Ελληνικάπράξη práxi
Русскийакт akt, де́йствие déjstvije
Tiếng Việtlớp
עבריתמערכה

verb to do something

Españolactuar
한국어행동하다 haengdonghada
日本語行動する kōdō suru
中文行動 /行动 xíngdòng, 做 zuò, 作 zuò
हिन्दीकर्म karm
Kiswahilitenda
Portuguêsagir
Françaisagir, faire
Deutschhandeln, tun, machen
Italianoagire
Ελληνικάπράττω prátto, ενεργώ energó, δρω dro
Românăacționa
Русскийде́йствовать déjstvovatʹ, поступа́ть postupátʹ, де́лать délatʹ
עבריתפָּעַל pa'a'l

verb to perform a theatrical role

Españolactuar
한국어연기를 하다 yeon'gireul hada
日本語演技する engi suru, 演ずる enzuru
हिन्दीनाटक nāṭak, अभिनय abhinay
Kiswahilitenda
Portuguêsatuar
Françaisjouer
Deutschspielen
Italianorecitare
Ελληνικάυποδύομαι ypodýomai
Românăinterpreta
Русскийигра́ть igrátʹ, исполня́ть ispolnjátʹ
Tiếng Việtdiễn, diễn xuất
العربيةمَثَّلَ maṯṯala

verb to behave in a certain way

한국어행동하다 haengdonghada, 처신하다 cheosinhada
日本語行動する kōdō suru, 振る舞う furumau
中文為人 /为人 wéirén
हिन्दीव्यवहार vyavhār
Kiswahilitenda
Portuguêscomportar-se
Françaisse comporter
Deutschsich benehmen, sich verhalten
Italianofare, comportarsi
Ελληνικάσυμπεριφέρομαι symperiféromai
Русскийвести́ себя́ vestí sebjá, поступа́ть postupátʹ, поступи́ть postupítʹ
العربيةتَصَرَّفَ taṣarrafa

verb to convey an appearance of being

Русскийвести́ себя́ vestí sebjá

verb to have an effect on

Portuguêsagir (sobre/em)
Deutschwirken, agieren, auswirken
Italianoattuare, regolare, guidare, governare
Ελληνικάεπενεργώ epenergó
Русскийвозде́йствовать vozdéjstvovatʹ, де́йствовать déjstvovatʹ, влия́ть vlijátʹ

verb to respond to information

Kiswahilitenda
Deutschagieren
Русскийде́йствовать déjstvovatʹ

Talk about this word

Cite this
MLA

"act." Wiktionary, via Micwyn, micwyn.com/word/act. Accessed 6 Nov. 2026.

APA

act. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/act

Chicago

"act." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/act.

BibTeX
@misc{act_2026,
  title = {act},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/act},
  urldate = {2026-11-06}
}