Bet only The ending bet is rare. There exists few words ending in bet. There are 46 words that end with BET. → 4 3-letter words ending with bet: A bet is 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). An adsorption technique used to measure the specific surface area of a solid, typically using nitrogen gas at a temperature of 77 K. → 1 4-letter words ending with bet: To abet means to urge on, stimulate (a person to do) something desirable.