Cup can refer to:

• A drinking vessel such as a teacup or similar drinkware. See also - Dixie Cup
• A cup-shaped prize, e.g Davis Cup, League Cup.
• The part covering the breast in a brassiere.
• A jock strap.

• A unit of measuring volume, used primarily in cooking in some English-language countries

1 U.S. customary cup (old) = 0.5 U.S. pints, or 8 U.S. fl. oz. (fluid ounces), equivalent to approximately 237 ml

1 U.S. customary cup (new) = 240 ml (as defined in U.S. law 21CFR101.9(b)(5)(viii))

1 metric cup = 250 ml (as defined in Australia, Canada, New Zealand), equivalent to approximately 8.5 U.S. fl. oz.

A cup of brewed coffee in the U.S. is traditionally 6 U.S. fl. oz., equivalent to approximately 177 ml.

see also the acronym CUP