1. An interest certificate attached to transferable bonds, which is cut off on receipt of payment; any similar promise to pay, cut off, and returned on payment.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• groupon,
• coupn,
• coupk,
• cousion,
• coupone,
• coson,
• coocon,
• uopon,
• cuson,
• cooupon,
• couison,
• youpon,
• coutn,
• coupan,
• cousan,
• cupon,
• dupon,
• scorpon,
• coomon,
• compony

• coping,
• copen,
• Cooping,
• cow pony,
• colon,
• Coppin,
• Covin,
• copehan,
• coop in,
• Upon,
• coven.

The adjective form of the word "coupon" is "couponic".

The plural of the "coupon" can be the "coupons".

The singular of the "coupon" can be the "coupon".