tube

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Pronunciation[change]

Noun[change]

Singular
tube

Plural
tubes

A tube
  1. A tube is a long object with a hole from one end to the other. The ends may be closed or open.
    The high pressure forces the water through the tube.
    Toothpaste comes in a tube.
  2. The Tube is the underground train system in London, England.

See also[change]

Verb[change]

Plain form
tube

Third-person singular
tubes

Past tense
tubed

Past participle
tubed

Present participle
tubing

  1. (intransitive) If you tube, you float on an inner tube.
    We went white-water tubing on the Yukon River.