pl.n. (used with a sing. or pl. verb)1. A contest, often promoting a product or service, in which participants enter without paying to win usually one of several prizes. Winners are selected at random from the pool of entrants.
2. a. A lottery in which the participants' contributions form a fund that is awarded as a prize to one or several winners.
b. An event or contest, especially a horserace, the result of which determines the winner of such a lottery.
c. The prize won in such a lottery.