a container or apparatus, as an insulated chest, in which something may be cooled or kept cool.

anything that cools or makes cool; refrigerant.

an air conditioner.

a tall drink, consisting of liquor, soda, and a fruit garnish.

water cooler.

the cooler, Slang . jail

He was in the cooler for three months for petty theft.

Ice Hockey Slang . penalty box.

noun

brig , house of correction , keep , penitentiary , prison , ade , container , drink , icebox , jail , lockup , refrigerant , refrigerator