tube
//tjuːb//
Noun
A long, hollow cylinder made of metal, plastic, glass, or other material, used for holding or transporting something
Water flows through the metal tube.
A container with a narrow opening, typically made of soft metal or plastic, from which a substance can be squeezed out
She squeezed some toothpaste out of the tube.
The underground railway system, especially in London
I take the tube to work every day.
A cathode ray tube or television set
My grandfather still watches the tube every evening.
A hollow cylindrical organ or structure in the body, such as the fallopian tubes
The fallopian tubes connect the ovaries to the uterus.
Verb
To ride or float down a river or slope on an inner tube or similar inflatable device
We went tubing down the river on a hot summer day.
To provide with a tube or tubes; to fit with tubes
The mechanic tubed the bicycle tire to replace the damaged inner tube.