noun
plural -gers
[count] an agreement in which people try to guess what will happen and the person who guesses wrong has to give something (such as money) to the person who guesses right :bet
the money or other valuable thing that you could win or lose in a bet
verb
-gers; -gered; -gering
to risk losing something (such as money) if your guess about what will happen is wrong :bet [+ obj]
informal - used in the phrase I'll wager to indicate what you think will happen or what you believe is probably true