Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun voucher

3 senses of voucher

Sense 1
voucher, verifier -- (someone who vouches for another or for the correctness of a statement)
       => supporter, protagonist, champion, admirer, booster, friend -- (a person who backs a politician or a team etc.; "all their supporters came out for the game"; "they are friends of the library")

Sense 2
voucher -- (a document that serves as evidence of some expenditure)
       => document, written document, papers -- (writing that provides information (especially information of an official nature))

Sense 3
coupon, voucher -- (a negotiable certificate that can be detached and redeemed as needed)
       => commercial document, commercial instrument -- (a document of or relating to commerce)