返へん信しん用よう封ふう筒とうMeaningsNoun1. self-addressed stamped envelope; SASEKanji used返return something信belief用used for封seal筒cylinderComposed of返へん信しんreply (e.g. email, fax, letter); answerNoun用ようbusiness; task; errand; engagement; use; purpose; for the use of ...; used for ...; made for ...; call of nature; …Noun封ふう筒とうenvelopeNoun