noun
A piece of paper or other token that entitles the holder to a discount, or that can be exchanged for goods and services.
A receipt.
One who or that which vouches.
(advertising) A copy of a published advertisement sent by the agency to the client as proof of publication.
(historical) A mechanical device used in shops for automatically registering the amount of money drawn.
verb
(transitive) To establish the authenticity of; to vouch for.
(transitive) To provide a vouch for (an expenditure).
(transitive) To provide (a beneficiary) with a voucher.