is a drinking
A cup is also a cup-shaped prize, e.g Davis Cup, League Cup.
Cup is an alternate name for a jock strap.
A cup is a unit of measuring volume used primarily in cooking.
1 U.S customary cup = 0.5 U.S. pints, or 8 U.S. fl. oz. (fluid ounces)
1 metric cup = 250 ml (as defined in Australia, Canada, New Zealand and UK)
See also: Imperial unit