suspicion
Americannoun
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act of suspecting.
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the state of mind or feeling of one who suspects.
Suspicion kept him awake all night long.
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an instance of suspecting something or someone.
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state of being suspected.
under suspicion; above suspicion.
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imagination of anything to be the case or to be likely; a vague notion of something.
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a slight trace, hint, or suggestion.
a suspicion of a smile.
verb (used with object)
noun
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the act or an instance of suspecting; belief without sure proof, esp that something is wrong
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the feeling of mistrust of a person who suspects
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the state of being suspected
to be shielded from suspicion
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a slight trace
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in such a position that no guilt may be thought or implied, esp through having an unblemished reputation
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as a suspect
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regarded with distrust
Usage
What does suspicion mean? Suspicion is the state or act of suspecting something—having a sense that it may be true without knowing with certainty. Suspicion can also refer to this sense, as in I had a suspicion that I was going to be fired, or an instance of suspecting someone of something, as in My suspicions turned out to be right—they had been stealing from the register. A suspicion is usually based on something, such as a hunch or some kind of evidence, but the word is typically used in situations in which there is some doubt—when someone suspects something, but isn’t sure. Suspicion is most commonly used in negative contexts, but this isn’t always the case. For example, you might have a suspicion that someone is planning a surprise party for you. Suspicion can also refer to a state of mind, as in He’s always been prone to suspicion. To regard something with suspicion is to regard it with distrust. Sometimes, suspicion refers to the state of being suspected, especially of a crime or other wrongdoing. This sense of the word is often used in phrases like under suspicion and on suspicion of, as in He was arrested on suspicion of robbery. Someone who’s considered highly trustworthy might be described as above suspicion, meaning you would never suspect them of doing anything wrong. The adjective suspicious can describe a person who has suspicions about others, as in My parents got suspicious when I kept asking whether they’d be home tomorrow, or someone or something that arouses suspicion, as in a suspicious package. Example: We have suspected it all along, and what happened today confirmed our suspicions.
Related Words
Suspicion, distrust are terms for a feeling that appearances are not reliable. Suspicion is the positive tendency to doubt the trustworthiness of appearances and therefore to believe that one has detected possibilities of something unreliable, unfavorable, menacing, or the like: to feel suspicion about the honesty of a prominent man. Distrust may be a passive want of trust, faith, or reliance in a person or thing: to feel distrust of one's own ability.
Other Word Forms
Etymology
Origin of suspicion
First recorded in 1250–1300; Middle English, from Latin suspīciōn- (stem of suspīciō ), equivalent to suspīc- (variant stem of suspicere “to look from below, suspect” ) + -iōn- -ion; see suspect
Explanation
Suspicion is a feeling that something might be true. If your friends seem to be keeping a secret from you, you might have a suspicion that they are planning a surprise party for your birthday. Suspicion can mean the same as hunch or inkling, like when you have a suspicion that your friend is hiding a flower bouquet behind his back. Suspicion comes from the Latin word suspicere, or mistrust. That's why it can mean a general bad feeling about someone or something, like neighbors who regard all new people with suspicion until they get to know them.
Vocabulary lists containing suspicion
Bud, Not Buddy
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"Romeo and Juliet" by William Shakespeare, Act V
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Similes from Top AP English Exam Novels
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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.
Maximin Carter, 51, from Neath Port Talbot, was initially arrested on suspicion of attempting to make an explosive after police were called to Commercial Street, Abergwynfi, on 14 February.
From BBC • May 18, 2026
There could even be reasonable suspicion of coercion.
From Slate • May 15, 2026
Kerry Doyle, a deputy general counsel for the Department of Homeland Security in the Biden administration, said she’d never heard of someone being detained at a port of entry on suspicion of voting illegally.
From Salon • May 14, 2026
At a debate last week, rival candidate Antonio Villaraigosa pounced on the payments made by Becerra, saying that the politician “has to be under suspicion because it doesn’t pass the smell.”
From Los Angeles Times • May 13, 2026
Three times in as many months, Danny and Vinny called, and Lippmann returned—and that fact alone heightened their suspicion of him.
From "The Big Short" by Michael Lewis
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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.