- an act or instance of relinquishing, abandoning, repudiating, or sacrificing something, as a right, title, person, or ambition: the king’s renunciation of the throne.
- the act or an instance of renouncing
- a formal declaration renouncing something
- stock exchange the surrender to another of the rights to buy new shares in a rights issue
late 14c., “action of renouncing,” from Latin renuntiationem (nominative renuntiatio), noun of action from past participle stem of renuntiare “renounce” (see renounce).