a contract whose performance by one party depends on the occurrence of an uncertain contingent event (but if it is contingent on the outcome of a wager it is not enforceable)
a binding agreement between two or more persons that is enforceable by law
enter into a contractual arrangement
engage by written agreement
be stricken by an illness, fall victim to an illness
squeeze or press together
(contract bridge) the highest bid becomes the contract setting the number of tricks that the bidder must make
become smaller or draw together
dependent on chance
make or become more narrow or restricted
