Synonyms of act in English:

act


See definition of act

verb

1‘the Government must act to remedy the situation’

SYNONYMS

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

informal get moving

ANTONYMS

do nothing

2‘over dinner Alison began to act oddly’

SYNONYMS

behave, function, react, perform

conduct oneself, acquit oneself, bear oneself

rare comport oneself, deport oneself

3‘the scents act as a powerful aphrodisiac’

SYNONYMS

operate, work, take effect, function, serve, be efficacious

4‘he acted in a highly successful film’

SYNONYMS

perform, play, play a part, take part, be an actor, be an actress, be one of the cast, appear

informal tread the boards

5‘we laughed, but most of us were just acting’

SYNONYMS

pretend, play-act, sham, fake, feign, put it on, bluff, pose, posture, masquerade, dissemble, dissimulate

informal kid


noun

1‘a life filled with acts of kindness’

SYNONYMS

deed, action, gesture, feat, exploit, move, performance, undertaking, manoeuvre, stunt, operation, venture, effort, enterprise, achievement, accomplishment

2‘the Act raised the tax on tobacco’

SYNONYMS

law, decree, statute, bill, Act of Parliament, edict, fiat, dictum, dictate, enactment, resolution, ruling, rule, judgement, canon, ordinance, proclamation, command, commandment, mandate, measure, stipulation, direction, requirement

legislation

ukase

pronunciamento

3‘I have written one act of a play’

SYNONYMS

division, section, subsection, portion, part, segment, component, bit

passage, episode, chapter

4‘a marvellous music hall act’

SYNONYMS

performance, turn, routine, number, item, piece, sketch, skit, playlet, dance, song

show, production, presentation, entertainment

informal gig

5‘my mother thinks crying is simply putting on an act’

SYNONYMS

pretence, false display, show, front, facade, masquerade, charade, guise, posture, pose, affectation, appearance

sham, fake, bluff, hoax

make-believe, play-acting, feigning, shamming, posturing, posing, counterfeit, subterfuge, dissimulation, dissemblance, fabrication, falsification

informal a put-on, a put-up job


Phrases

    act for

      ‘the estate agent was acting for a prospective buyer’

      SYNONYMS

      represent, act on behalf of, speak on behalf of

      stand in for, fill in for, deputize for, cover for, substitute for, be a substitute for, replace, take the place of, act in place of, be a locum for, do a locum for, sit in for, understudy

      hold the fort, step into the breach

      informal

      sub for, fill someone's boots, fill someone's shoes

      North American informal

      pinch-hit for

      act
    act on/upon

      1‘the drug acted directly on the blood vessels’

      SYNONYMS

      affect, have an effect on, influence, exert influence on, work on, have an impact on, impact on, alter, change, modify, transform, condition, control

      ANTONYMS

      have no effect on

      act

      2‘he was merely acting on the orders of the party leader’

      SYNONYMS

      comply with, act in accordance with, follow, go along with

      obey, take heed of, heed, conform to, abide by, adhere to, stick to, stand by, uphold, fulfil, meet, discharge

      ANTONYMS

      flout

      act
    act up

      1‘the pupils are past masters at acting up in class’

      SYNONYMS

      misbehave, give someone trouble, cause someone trouble, act badly, get up to mischief, get up to no good, be bad, be naughty, forget oneself, misconduct oneself

      clown about, clown around, fool about, fool around, act the clown, act the fool, act the goat, act foolishly

      informal

      carry on, mess about, mess around

      British informal

      muck about, muck around, play up

      2‘the computers are always acting up’

      SYNONYMS

      malfunction, crash, develop a fault, go wrong, break down, give out, stall, be defective, be faulty, fail, cease to function, cease to work, stop working

      informal

      conk out, go kaput, go phut, go on the blink, be on the blink

      British informal

      pack up, play up