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. 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.
Johnson & Johnson’s immunology bet is paying off as the drugmaker gears up to market an innovative new psoriasis pill and had stronger-than-expected performance of another drug.
From MarketWatch • Apr. 14, 2026
The man who left Scotland with just enough cash to place a wild bet on himself still appreciates the pay-offs from inhabiting this high-pressure world where his healing hands can provide a critical assist.
From BBC • Apr. 14, 2026
Will Denyer, chief economist at Gavekal Research, suggests pairing long positions in Brazilian and South Korean Equities: Brazil chiefly as a hedge against ongoing conflict and South Korea as a bet on peace.
From Barron's • Apr. 12, 2026
In years of relative peace in the Middle East, it seemed a sure bet.
From The Wall Street Journal • Apr. 12, 2026
I bet she’s mapping and charting out every last detail, searching the base of the bluff for hidden paths.
From "The Wrong Way Home" by Kate O’Shaughnessy
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.
