The synonyms of “Act” are: act as, play, dissemble, pretend, move, playact, roleplay, work, behave, do, represent, take action, take steps, take measures, take the initiative, make a move, react, do something, proceed, go ahead, function, perform, affect, have an effect on, influence, exert influence on, work on, have an impact on, impact on, alter, change, modify, transform, condition, control, play a part, take part, be an...