a contest, especially in gambling on horseraces, in which the entire prize is divided among the winners, or race on which such a contest is placed;
e.g. He likes to bet on the sweepstakes now and then in hopes of winning something from it one day.
(noun)
some sort of contest such as a promotional drawing or a lottery in which the participants are awarded the prizes at no charge, or the prize won in such a contest;
e.g. Some people dream of winning the sweepstakes and like to imagine what they'd do with the prize money.