01
封筒
ふうとう
envelope
Meanings
- cylinder
- pipe
- tube
- gun barrel
- sleeve
Readings
Onyomi
- トウ
Kunyomi
- つつ
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Useful words
02
水筒
すいとう
water bottle
03
茶筒
ちゃづつ
tea canister
04
円筒
えんとう
cylinder
05
筒状
つつじょう
tube-shaped
06
筒抜け
つつぬけ
leaking out
Compare Kanji
01管Meaning95%pipe, tubeBoth kanji refer to pipes or tubes, often used interchangeably in technical contexts.02同Shape90%same, agree筒 is formed by adding the bamboo radical 竹 to the kanji 同.03胴Shape85%trunk, torsoBoth kanji share the component 同; 筒 uses the bamboo radical 竹 while 胴 uses the body radical 月.04笛Meaning80%flute, clarinetBoth kanji use the bamboo radical 竹 to represent hollow, cylindrical objects like tubes and flutes.05箱Component75%box, chestBoth kanji use the bamboo radical 竹, as these containers were traditionally crafted from bamboo.06節Meaning70%node, seasonBoth kanji relate to bamboo; 節 refers to the joints or nodes that segment a bamboo tube.