- 1actuate something to make a machine or device start to work synonym activate The timer must have been actuated by radio control.
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- 2[usually passive] actuate somebody to make someone behave in a particular way synonym motivate He was actuated entirely by malice.
actuate
verbNAmE//ˈæktʃuˌeɪt//
(formal)Verb Forms present simple I / you / we / they actuate he / she / it actuates
past simple actuated
-ing form actuating
Check pronunciation: actuate