act out /ˌækt ˈaʊ̯t/ verb6 •To perform a scene from a play, a charade or an exercise.Despite already being aware, he will be acting out the pretence of a surprise. •To express one's feelings through disruptive actions.I know you're angry, but you can't act out and break dishes like that. •To perform something specific.What was acted out in the American and French Revolutions had been thought out beforehand in the writings of Locke and Rousseau, the scenarists for the drama of modern politics. — 1987 •To perform a fantasy in reality.I've wanted to do this for so long, but I never thought I could act it out. •To express internal feelings or thoughts. •To express ideas or desires through actions rather than words.When her jaw was wired shut, she had acted out what she needed. formsacted out · acting out · acts out