contract bridge

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun Auction bridge in which tricks in excess of the contract may not count toward game bonuses.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A card game in which four players, forming two partnerships, first bid then play by taking tricks

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a variety of bridge in which the bidder receives points toward game only for the number of tricks he bid