bet

(bĕt)

1. An agreement usually between two parties that the one who has made an incorrect prediction about an uncertain outcome will forfeit something stipulated to the other; a wager.
2. An amount or object risked in a wager; a stake.
3. One on which a stake is or can be placed: Our team is a sure bet to win.
4. a. A plan or an option considered with regard to its probable consequence: Your best bet is to make reservations ahead of time.
   b. Informal A view or opinion, especially about something that cannot be known at the present time: My bet is that the rain will hold off. My bet is he didn't do it.

1. To stake (an amount, for example) in a bet.
2. To make a bet with: I bet them that we would be first.
3. To make a bet on (a contestant or an outcome).
4. To maintain confidently, as if making a bet: I bet they were surprised by the news.