passivizePronunciation: /ˈpasɪvʌɪz/ (also passivise)Definition of passivize verb [with object] Grammar convert (a verb or clause) into the passive form: identify the sentences that have been passivizedDerivatives passivizationPronunciation: /-ˈzɛɪʃ(ə)n/ noun passivize in other Oxford dictionaries Definition of passivize in the US English dictionary