How to say "tube" in Japanese
Choosing the right word
- nounThe loanword, covering flexible or manufactured tubes: a tube of toothpaste or ointment, rubber or medical tubing, a bicycle inner tube. For items like these it is the natural choice.
- nounChiefly the word for pipe: a hollow conduit carrying water, gas or smoke, as in household plumbing or a tobacco pipe. It matches tube when the item is essentially a pipe.
- 管かんnounThe Sino-Japanese reading of 管. Standing alone the word is normally read くだ; you mostly meet かん as part of compound words, so by itself it is seldom the word you want for tube.
- 管くだnounAs an independent word 管 is read くだ: a hollow pipe or tube that carries water, gas or air, as in plumbing. The nuance is the conduit's function rather than its shape.
- 筒つつnounA hollow cylinder thought of as an object: a length of bamboo used as a tube, or the tube of a telescope. The emphasis falls on the cylindrical shape rather than on conveying anything.
Choose 「チューブ」 for flexible manufactured tubes, 「パイプ」 for pipe-like conduits, 管（くだ）for hollow pipes that carry water or gas, 筒 for hollow cylinders, and 管（かん）chiefly as the reading inside compounds.
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only
Japanese equivalents
See also
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