ac·quit / əˈkwit/ • v. (-quit·ted, -quit·ting) 1. [tr.] (usu. be acquitted) free (someone) from a criminal charge by a verdict of not guilty: she was acquitted on all counts. 2. (acquit oneself) conduct oneself or perform in a specified way. ∎ (acquit oneself of) archaic discharge (a duty or responsibility): they acquitted themselves of their charge with vigilance.