annul Definition

annul
verb

annulled, annulling
1. To declare publicly that a marriage, legal contract, etc is no longer valid.

Thesaurus: negate, invalidate, rescind, retract, repeal, revoke, void, cancel, reverse; Antonym: restore, enact.

Derivative: annulment

See separate entry.

Etymology: 15c: from Latin annullare, from nullus none.