bet
1 Americanverb (used with object)
verb (used without object)
noun
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a pledge of a forfeit risked on some uncertain outcome; wager.
Where do we place our bets?
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that which is pledged.
a two-dollar bet.
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something that is bet on, as a competitor in a sporting event or a number in a lottery.
That horse looks like a good bet.
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an act or instance of betting.
It's a bet, then?
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a person, plan of action, etc., considered as being a good alternative; choice.
Your best bet is to sell your stocks now.
idioms
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all bets are off. see all bets are off.
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you bet! of course! surely!.
You bet I'd like to be there!
noun
abbreviation
abbreviation
noun
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an agreement between two parties that a sum of money or other stake will be paid by the loser to the party who correctly predicts the outcome of an event
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the money or stake risked
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the predicted result in such an agreement
his bet was that the horse would win
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a person, event, etc, considered as likely to succeed or occur
it's a good bet that they will succeed
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a course of action (esp in the phrase one's best bet )
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informal an opinion; view
my bet is that you've been up to no good
verb
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to make or place a bet with (a person or persons)
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(tr) to stake (money, etc) in a bet
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informal (tr; may take a clause as object) to predict (a certain outcome)
I bet she fails
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informal of course; naturally
Etymology
Origin of bet
First recorded in 1585–95; perhaps special use of obsolete bet “better,” in phrase the bet “the advantage,” i.e., “the odds”
Explanation
To bet is to gamble or risk something valuable against an unknown outcome. Poker players bet on each hand, hoping the cards they hold will beat those of the other players. Sometimes you bet money on a sporting event, wagering on the team you think will win and collecting even more money if it does. It's even more common to bet in a figurative way, saying something like, "I'd be willing to bet that the bus will be late again." The money you risk when you bet is also called a bet. The word probably comes from the now-obsolete noun abet, or "abetment."
Vocabulary lists containing bet
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
A US special forces soldier involved in the military operation that captured Nicolas Maduro has been arrested after he allegedly bet on the removal of Venezuela's former leader before the information was publicly available.
From BBC • Apr. 23, 2026
For most dividend investors, AT&T, which yields 4.4%, is a steadier bet.
From Barron's • Apr. 23, 2026
Traders have periodically alleged attempts to rig the outcome of Polymarket’s betting contracts by tampering with the sources used to determine answers to the yes-or-no questions that its users bet on.
From The Wall Street Journal • Apr. 23, 2026
“It was the first song that I bet on as an artist, and I spent the very little money that I had on it,” Armenta said.
From Los Angeles Times • Apr. 23, 2026
“I bet you’ve agreed with my shirt for a long time.”
From "Clairboyance" by Kristiana Kahakauwila
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
