tube

Anything that is hollow and cylindrical in shape.

An approximately cylindrical container, usually with a crimped end and a screw top, used to contain and dispense semiliquid substances.

“A tube of toothpaste.”

UKcolloquialoften capitalised as tubea trademarkThe London Underground railway system, originally referred to the lower level lines that ran in tubular tunnels as opposed to the higher ones which ran in rectangular section tunnels. (Often the tube.)

“I took the tube to Waterloo and walked the rest of the way.”

AustraliaslangA tin can containing beer.

surfingA wave which pitches forward when breaking, creating a hollow space inside.

north americacolloquialA television. Compare cathode ray tube and picture tube.

ScotlandslangAn idiot.

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

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

(anatomy) any hollow cylindrical body structurebody

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’”

To supply with, or enclose in, a tube.

“She tubes lipstick in the cosmetics factory.”

To ride an inner tube.

“They tubed down the Colorado River.”

medicinecolloquialTo intubate.

“The patient was tubed.”

Provide with a tube or insert a tube into