cylinder, pipe, tube, gun barrel, sleeve

Radicals

Common words

• 封筒【ふうとう】
  envelope
• 筒【つつ】
  pipe, tube, cylinder, gun barrel, gun, cannon, well lining, well curb
• 円筒【えんとう】
  cylinder
• 水筒【すいとう】
  canteen, flask, water bottle, thermos
• 発煙筒【はつえんとう】
  smoke bomb, smoke candle