depu·tize (BrE also-ise) [deputizedeputizesdeputizeddeputizing] BrE [ˈdepjutaɪz] NAmE [ˈdepjutaɪz] verb intransitive ~ (for sb) to do sth that sb in a higher position than you would usually do •Ms Green has asked me to deputize for her at the meeting. Verb forms: