to lay claim to; to assert a right to; to claim.-to maintain or defend with success; to prove to be valid; to assert convincingly; to sustain against assault; as, to vindicate a right, claim, or title.-to support or maintain as true or correct, against denial, censure, or objections; to defend; to justify.-to maintain, as a law or a cause, by overthrowing enemies.-to liberate; to set free; to deliver.-to avenge; to punish; as, a war to vindicate or punish infidelity.