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Tube meaning

What does “tube” mean? Definitions, examples, synonyms and opposites.

“tube” is a noun and verb with 9 meanings. Its most common meaning is: conduit consisting of a long hollow object (usually cylindrical) used to hold and conduct objects or liquids or gases.

tube

noun

  1. conduit consisting of a long hollow object (usually cylindrical) used to hold and conduct objects or liquids or gases

    Synonymstubing

  2. electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope

    Synonymsvacuum tubethermionic vacuum tubethermionic tubeelectron tubethermionic valve

  3. a hollow cylindrical shape

    Synonymspipe

  4. (anatomy) any hollow cylindrical body structure

    Synonymstube-shaped structure

  5. an electric railway operating below the surface of the ground (usually in a city)

    “in Paris the subway system is called the `metro' and in London it is called the `tube' or the `underground'”

    Synonymsmetroundergroundsubway systemsubway

verb

  1. provide with a tube or insert a tube into

  2. convey in a tube

    “inside Paris, they used to tube mail”

  3. ride or float on an inflated tube

    “We tubed down the river on a hot summer day”

  4. place or enclose in a tube

Source: WordNet 3.1, Princeton University

More about “tube”

✦Synonyms for tube