D defs.my
Entry 4 senses Webster, 1913

Coupon

/(k??"p?n; F. k??`p?n")/ · Cou·pon · IPA /ˈkuːˌpɑn/
01 n. A certificate of interest due, printed at the bottom of transferable bonds (state, railroad, etc.), given for a term of years, designed to …
  1. 1.
    A certificate of interest due, printed at the bottom of transferable bonds (state, railroad, etc.), given for a term of years, designed to be cut off and presented for payment when the interest is due; an interest warrant.(Com.)
  2. 2.
    A section of a ticket, showing the holder to be entitled to some specified accomodation or service, as to a passage over a designated line of travel, a particular seat in a theater, or the like.
  3. 3.
    a ticket or form allowing the bearer to purchase a specific quantity of rationed goods; -- such coupons are typically issued by a governmental agency.
  4. 4.
    a printed form, often distributed as part of an advertisement, entitling the bearer to purchase a specific item of merchandise at a discount; or, a similar form which may be submitted to the issuer to obtain goods or information. Such coupons may be issued by the manufacturer (manufacturer's coupon) or by a retail establishment; in the latter case they may then be redeemed only at that particular retail store.