cou·pon
/ˈkupɒn, ˈkyu-/ Show Spelled[koo-pon, kyoo-] Show IPA
–noun
1.
a portion of a certificate, ticket, label, advertisement, or the like, set off from the main body by dotted lines or the like to emphasize its separability, entitling the holder to something, as a gift or discount, or for use as an order blank, a contest entry form, etc.
2.
a separate certificate, ticket, etc., for the same purpose.
3.
one of a number of small detachable certificates calling for periodic interest payments on a bearer bond. Compare coupon bond.
4.
Metallurgy . a sample of metal or metalwork submitted to a customer or testing agency for approval.
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