Home / Vocabulary / 筒 筒 Kanji meanings and readings 筒 N2 cylinder; pipe; tube; gun barrel; sleeve On readingトウ Kun readingつつ Radical竹 Related vocabulary ✦Illustration in preparation 封筒 N5 ふうとう envelope ✦Illustration in preparation 水筒 N2 すいとう canteen; flask; water bottle ✦Illustration in preparation 筒 N1 つつ pipe; tube