expectation
Americannoun
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the act or the state of expecting.
to wait in expectation.
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the act or state of looking forward or anticipating.
- Synonyms:
- trust, hope, anticipation, expectancy
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an expectant mental attitude.
a high pitch of expectation.
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something expected; a thing looked forward to.
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Often expectations. a prospect of future good or profit.
to have great expectations.
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the degree of probability that something will occur.
There is little expectation that he will come.
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Mathematics, Statistics. mathematical expectation.
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the state of being expected.
a large sum of money in expectation.
noun
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the act or state of expecting or the state of being expected
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(usually plural) something looked forward to, whether feared or hoped for
we have great expectations for his future
their worst expectations
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an attitude of expectancy or hope; anticipation
to regard something with expectation
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statistics
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the numerical probability that an event will occur
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another term for expected value
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Other Word Forms
- expectational adjective
- expectationist noun
- expectative adjective
- overexpectation noun
- preexpectation noun
- superexpectation noun
Etymology
Origin of expectation
First recorded in 1530–40; from Latin ex(s)pectātiōn-, stem of ex(s)pectātiō “anticipation, suspense,” from ex(s)pectāt(us) (past participle of ex(s)pectāre “to look out for, await”) + -iō -ion; see expect
Explanation
An expectation is a belief about what might happen in the future, like your expectation to stay close with your best friends your whole life. The word expectation comes from the Latin word expectationem, meaning "an awaiting." If you have great expectations, you think something good will come your way, but if keep your expectations low, you won't risk being disappointed. Expectation can also describe something that is supposed to happen, like a teacher whose expectation is that everyone comes to class prepared.
Vocabulary lists containing expectation
"Diary of a Wimpy Kid" by Jeff Kinney
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The Crossover
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100 SAT Words Beginning with "E"
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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.
The expectation was No 10's next appointment with Mandelson related anguish would be the next deluge of documents Parliament has demanded and which are expected to be published soon.
From BBC • Apr. 17, 2026
The expectation is that all customers will continue to log return visits at regular intervals.
From Barron's • Apr. 16, 2026
Jefferies had already updated estimates to reflect this scenario, and the investment bank’s analysts say Westpac’s new portfolio overlay for energy intensive sectors supports this expectation.
From The Wall Street Journal • Apr. 15, 2026
A substantial majority of American business leaders are planning for U.S. tariffs to stay elevated for years — and that’s a reasonable expectation, according to trade specialists at PwC.
From MarketWatch • Apr. 13, 2026
Uncle Turu rose, rubbing his big hands together briskly in expectation.
From "The Ugly One" by Leanne Statland Ellis
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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.