cylinder, pipe, tube, gun barrel, sleeve

Radicals

Common words

• 封筒【ふうとう】
  envelope
• 水筒【すいとう】
  canteen, flask, water bottle, thermos
• 筒井【つつい】
  round well
• 発煙筒【はつえんとう】
  smoke bomb, smoke candle
• 円筒【えんとう】
  cylinder
• 気筒【きとう】
  cylinder
• 井筒【いづつ】
  well curb, well kerb, family crest design based on a square wooden well curb
• 筒抜け【つつぬけ】
  being overheard, being leaked (e.g. secrets), going in one ear and out the other