Definition of "Contract" :
noun: a variety of bridge in which the bidder receives points toward game only for the number of tricks he bid
noun: a binding agreement between two or more persons that is enforceable by law
noun: (contract bridge) the highest bid becomes the contract setting the number of tricks that the bidder must make
verb: be stricken by an illness, fall victim to an illness
verb: become smaller or draw together
verb: reduce in scope while retaining essential elements
verb: make or become more narrow or restricted
verb: compress or concentrate
verb: enter into a contractual arrangement
verb: make smaller
"The heat contracted the woollen garment."
verb: squeeze or press together
"The spasm contracted the muscle."
verb: engage by written agreement