(noun, verb)


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

Similar word(s): tubing

Definition categories: man–made, conduit

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

Definition categories: man–made

3. a hollow cylindrical shape

Similar word(s): pipe

Definition categories: shape, cylinder

4. (anatomy) any hollow cylindrical body structure

Definition categories: body, 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'

Similar word(s): metro, subway, underground

Definition categories: man–made, railroad, railway

Sentences with tube as a noun:

- A tube of toothpaste.

- No mate, I am taking the tube!

- Are you just going to sit around all day and watch the tube?


1. provide with a tube or insert a tube into

Definition categories: possession, furnish, provide, render, supply

2. convey in a tube

- inside Paris, they used to tube mail

Definition categories: motion, bring, convey, take

3. ride or float on an inflated tube

- We tubed down the river on a hot summer day

Definition categories: motion, ride

4. place or enclose in a tube

Definition categories: contact, enclose, enfold, envelop, enwrap, wrap

Sentences with tube as a verb:

- She tubes lipstick.

- They tubed down the Colorado River.