Coupon \Cou"pon\ (k??"p?n; F. k??`p?n"), n. [F., fr. couper to cut, cut off. See Coppice.]

1. (Com.) 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.

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.

Source: Webster's Revised Unabridged Dictionary (1913)