come·back / ˈkəmˌbak/ • n. 1. a return by a well-known person, esp. an entertainer or sports player, to the activity in which they have formerly been successful. ∎ a return to fashion of an item, activity, or style: stirrup pants have made a comeback. 2. inf. a quick reply to a critical remark. ∎ the opportunity to seek redress.