Did you mean bet?
bet
noun
°A wager, an agreement between two parties that a stake (usually money) will be paid by the loser to the winner (the winner being the one who correctly forecast the outcome of an event).
"Dylan owes Fletcher $30 from an unsuccessful bet."
°A degree of certainty.
"It’s a safe bet that it will rain tomorrow."
verb
°To agree that payment be made to the successful forecaster of the result of an event (usually sporting) by the other party in the agreement. To make a guess about the outcome of an event.
°To be sure of something; to be able to count on something.