Justification or authority for an action, belief, or feeling
An official certificate of appointment issued to an officer of lower rank than a commissioned officer
A document that entitles the holder to receive goods, money, or services
A negotiable security allowing the holder to buy shares at a specified price at or before some future date
A document issued by a legal or government official authorizing the police or some other body to make an arrest, search premises, or carry out some other action relating to the administration of justice
to justify, also WARRAN, WARRAND [v -ED, -ING, -S]
to give authority to [v WARRANTED, WARRANTING, WARRANTS] : WARRANTABLY [adv]