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

2 senses of coupon

Sense 1
coupon, voucher -- (a negotiable certificate that can be detached and redeemed as needed)
       => commercial document, commercial instrument -- (a document of or relating to commerce)

Sense 2
coupon -- (a test sample of some substance)
       => sample -- (a small part of something intended as representative of the whole)