Definition of vindicate

• v. t. - To lay claim to; to assert a right to; to claim.
• v. t. - 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.
• v. t. - To support or maintain as true or correct, against denial, censure, or objections; to defend; to justify.
• v. t. - To maintain, as a law or a cause, by overthrowing enemies.
• v. t. - To liberate; to set free; to deliver.
• v. t. - To avenge; to punish; as, a war to vindicate or punish infidelity.