bet on. v. 1. To place a bet of some amount on some event: I bet $5 on the first race of the evening. I'm not going to bet on the last race. 2. To place a bet of some amount on some participant in an event: We bet $200 on the home team, but they lost. Don't bet anything on me in this game; I'm not a very good player.
bet on - place a bet on; "Which horse are you backing?"; "I'm betting on the new horse"
To be certain that something will happen (so much so that one would bet money on it). Oh, Kevin's never on time, so he will be late tonight—you can bet on it. See also: bet , on
One meaning is that something has a near certainty of being right: You can bet on it; you can bet your life on it; etc. This usage is often used metaphorically, but it can be used in concrete situation in some contexts.
An acception of an invitation, also meaning Yes. A sign of approval. Most do not use it sparingly, but add it to spice up sentences. Not referring to, "making a bet."
to risk money on the result of an event or a competition, such as a horse race, in the hope of winning more money: He regularly goes to the races and bets heavily. She bet $500,000 on the horse that came in second. [ + two objects, + (, that, ) ] I bet you $25 ( that) I'll get there before you. B1 [ T ] informal.
Bet can also be used as a verb meaning to wager or to be able to be sure of a certain outcome, i.e. you bet. The past tense of bet is also bet. The pronunciation of bet is bɛt. A good bet is one that is likely to go in your favor. A bad bet is one where you are likely to be the loser. If one loses a bet, they will likely have to forfeit a sum of money.
informal (also I wouldn't bet on it) used to tell someone that you think something is unlikely to be true or to happen : "Do you think they'll give me back the money they owe me?"