クーポンkuupon

1. nouncoupon; voucher

• Synonymクーポン券クーポンけんNeutralAdds 「券」 to 「クーポン」 to make clear it is a ticket-type discount voucher, printed or digital. 「クーポン」 alone can also refer to a bond interest coupon.
• SynonymバウチャーWrittenA written loanword for a voucher used to pay part or all of a price, or a travel booking voucher such as 「宿泊バウチャー」; 「クーポン」 leans toward discount coupons.

Discount coupons take 「クーポン」, as in 「割引クーポン」 and 「クーポンを使う」; say 「クーポン券」 to stress the ticket itself. For payment or travel-booking vouchers, use 「バウチャー」.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 切り取きりとって使用しようできる割引券わりびきけんや金券きんけんのこと。
2. 利札りさつ。またはその利息りそく。