bet

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).

How to use

The term 'bet' is commonly used in informal settings, often among friends or acquaintances, and can imply a level of casualness or joking. A notable grammatical nuance is that 'bet' can also function as a verb, as in 'I bet you can't eat that spicy dish,' where it expresses a challenge or prediction. Learners should be cautious not to confuse this with the noun form, especially in writing.