coupon
1. [ noun ] (writing) a negotiable certificate that can be detached and redeemed as needed
Synonyms: voucher
Related terms: commercial_document book_token twofer luncheon_voucher
2. [ noun ] a test sample of some substance
Related terms: sample
Similar spelling:   Copen
  cow_pony
  Coppin
  coop_in
  Copehan
  Covin
  coven