返へん信しん用よう封ふう筒とう

noun

self-addressed stamped envelope; SASE

A reply envelope with the sender's own address and postage already affixed, commonly enclosed with business correspondence or applications.

• 申もうし込こみ書しょには返へん信しん用よう封ふう筒とうを同どう封ふうしてください。

  Please enclose a self-addressed stamped envelope with the application form.