Dictionary/筒つつTsutsuJLPT N1筒 (Tsutsu) is a Japanese noun meaning “pipe, tube, cylinder, gun barrel”.Meaningsnounpipe; tube; cylindernoungun barrelnoungun; cannonnounwell lining; well curbKanji in 筒筒cylinderRelated words封筒envelope筒井round well水筒canteen発煙筒smoke bomb円筒cylinder気筒cylinder