Pronunciation: (kraps), [key]
—n. (usually used with a sing. v.)
a game in which two dice are thrown and in which a first throw of 7 or 11 wins, a first throw of 2, 3, or 12 loses, and a first throw of 4, 5, 6, 8, 9, or 10 can be won only by throwing the same number again before throwing a 7.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.