charity stamp

A postage stamp which includes a premium for charitable causes in addition to the charge for postal service.

Japanese Meaning

郵便料金に加え、慈善活動のための寄付金が含まれている切手、つまり寄付目的で発行される切手

She bought a charity stamp to support the wildlife conservation fund when sending her holiday cards.

彼女はクリスマスカードを送る際、野生動物保護基金を支援するために寄付金付きの郵便切手を購入した。

Sense（1）

A postage stamp which includes a premium for charitable causes in addition to the charge for postal service.

charity stamps

（ plural ）