wager

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. An agreement under which each bettor pledges a certain amount to the other depending on the outcome of an unsettled matter.
2. n. A matter bet on; a gamble.
3. n. Something staked on an uncertain outcome; a bet. See Synonyms at bet.
4. n. Archaic A pledge of personal combat to resolve an issue or case.
5. v. To risk or stake (an amount or a possession) on an uncertain outcome; bet.
6. v. To make a bet.

Century Dictionary and Cyclopedia

1. n. A pledge; a gage; a guaranty.
2. n. Something hazarded on an uncertain event; a Stake. By statutes of England, Scotland, and most if not all of the United States, all contracts or agreements, whether by parole or in writing, involving wagers are null and void, and the wager or money due thereon cannot be recovered in any court of law. A wager is therefore merely a debt of honor, and if paid it is in the eye of the law the same thing as giving a gratuity, except perhaps as to the liability of a principal to reimburse his agent when the latter has paid it because in honor bound.
3. n. The act of betting; a bet.
4. n. That on which bets are laid; the subject of a bet.
5. n. In old English law, an offer to make oath of innocence or non-indebtedness; also, the act of making such oath, the oaths of eleven compurgators being conjoined as fortifying the defendant's oath.
6. To hazard on the issue of a contest, or on some question that is to be decided, or on some casualty; bet; lay; stake.
7. To make a wager on; bet on: followed by a clause as object: as, I wager you are wrong.
8. To make a bet; offer a wager.

Wiktionary

1. n. Something deposited, laid, or hazarded on the event of a contest or an unsettled question; a bet; a stake; a pledge.
2. n. A contract by which two parties or more agree that a certain sum of money, or other thing, shall be paid or delivered to one of them, on the happening or not happening of an uncertain event.
3. n. That on which bets are laid; the subject of a bet.
4. v. transitive To bet something; to put it up as collateral
5. v. intransitive, figuratively To daresay.
6. n. Agent noun of wage; one who wages.

GNU Webster's 1913

1. n. Something deposited, laid, or hazarded on the event of a contest or an unsettled question; a bet; a stake; a pledge.
2. n. (Law) A contract by which two parties or more agree that a certain sum of money, or other thing, shall be paid or delivered to one of them, on the happening or not happening of an uncertain event.
3. n. That on which bets are laid; the subject of a bet.
4. v. To hazard on the issue of a contest, or on some question that is to be decided, or on some eventuality; to lay; to stake; to bet.
5. v. To make a bet; to lay a wager.

WordNet 3.0

1. n. the money risked on a gamble
2. v. maintain with or as if with a bet
3. n. the act of gambling
4. v. stake on the outcome of an issue