noun
commemorative coin; memorial coin
Refers to coins issued to commemorate a specific event, person, or anniversary. Often used in official contexts.
東京オリンピックの記念貨幣が発行された。
Commemorative coins for the Tokyo Olympics were issued.
記念切手 is a commemorative postage stamp, while 記念貨幣 is a commemorative coin.
Compound of 記念 (commemoration) and 貨幣 (currency, coin).