noun
gold certificate
Historical or financial term for a certificate backed by gold, not commonly used in everyday modern Japanese.
かつて金券は金との交換を保証する証書だった。
In the past, a gold certificate was a document guaranteeing exchange for gold.
noun
voucher; gift certificate; coupon
Common modern meaning: a prepaid ticket or coupon that can be exchanged for goods or services, such as gift certificates, travel vouchers, or book tokens.
デパートの金券をプレゼントにもらった。
I received a department store gift certificate as a present.
金券ショップで新幹線の回数券を安く買った。
I bought a Shinkansen coupon book cheaply at a ticket shop.