1. tube - noun
· conduit consisting of a long hollow object (usually cylindrical) used to hold and conduct objects or liquids or gases
Synonym(s): tubing
Hypernym(s): conduit
2. tube - noun
· electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope
Synonym(s): vacuum_tube, thermionic_vacuum_tube, thermionic_tube, electron_tube, thermionic_valve
Hypernym(s): electronic_device
3. tube - noun
· a hollow cylindrical shape
Synonym(s): pipe
Hypernym(s): cylinder
4. tube - noun
· (anatomy) any hollow cylindrical body structure
Synonym(s): tube-shaped_structure
Hypernym(s): structure, anatomical_structure, complex_body_part, bodily_structure, body_structure
5. tube - noun
· 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'"
Synonym(s): metro, underground, subway_system, subway
Hypernym(s): railway, railroad, railroad_line, railway_line, railway_system
6. tube - verb
· provide with a tube or insert a tube into
Hypernym(s): supply, provide, render, furnish
7. tube - verb
· convey in a tube; "inside Paris, they used to tube mail"
Hypernym(s): bring, convey, take
8. tube - verb
· ride or float on an inflated tube; "We tubed down the river on a hot summer day"
Hypernym(s): ride
9. tube - verb
· place or enclose in a tube
Hypernym(s): envelop, enfold, enwrap, wrap, enclose
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