ポスト投函ポストとうかん Noun English jmdict 1 noun (common) (futsuumeishi) posting mail in a postbox or mailbox 2 noun (common) (futsuumeishi) delivery of parcels, etc. to a specified location;postbox delivery
投函とうかん Common Noun Irregular Transitive English jmdict 1 noun (common) (futsuumeishi) noun or participle which takes the aux. verb suru transitive verb mailing;posting この手紙を必ず投函して下さい。 Don't fail to mail this letter. Other forms 投かん 【とうかん】 (search-only kanji form)