Tube (Noun)

Meaning ¹

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'".

Classification

Nouns denoting man-made objects.

Synonyms

• Metro
• Underground
• Subway System
• Subway

Hypernyms

• Railway
• Railway Line
• Railroad Line
• Railway System

Meaning ²

(anatomy) any hollow cylindrical body structure.

Classification

Nouns denoting body parts.

Synonyms

• Tube-shaped Structure

Hypernyms

• Complex Body Part
• Bodily Structure
• Body Structure
• Anatomical Structure

Hyponyms

• Vas

Related Words

• Tube (verb)
• Tubal (adjective)

Meaning ³

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

Classification

Nouns denoting man-made objects.

Synonyms

• Thermionic Tube
• Thermionic Valve
• Electron Tube
• Vacuum Tube
• Thermionic Vacuum Tube

Hyponyms

• Television Pickup Tube
• Rectifying Valve
• Rectifying Tube

Meaning ⁴

A hollow cylindrical shape.

Classification

Nouns denoting two and three dimensional shapes.

Synonyms

• Pipe

Hypernyms

• Cylinder

Related Words

• Tube (verb)

Meaning ⁵

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

Classification

Nouns denoting man-made objects.

Synonyms

• Tubing

Hyponyms

• Capillary Tube
• Drinking Straw
• Piping
• Syphon
• Pipage
• Blowpipe
• Blowtube
• Gun Barrel
• Hosepipe
• Tobacco Pipe
• Capillary Tubing
• Wellpoint
• Blow Tube
• Chromatography Column

Related Words

• Tubular (adjective)
• Tube (verb)