返へん信しん料りょう封ふう筒とう

noun

return, postage-paid envelope

A self-addressed envelope with postage already paid, typically enclosed with a letter or request so the recipient can reply without paying postage.

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

  Please enclose a return, postage-paid envelope with the application form.