suspect
Americanverb (used with object)
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to believe to be guilty, false, counterfeit, undesirable, defective, bad, etc., with little or no proof.
to suspect a person of murder.
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to doubt or mistrust.
I suspect his motives.
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to believe to be the case or to be likely or probable; surmise.
I suspect his knowledge did not amount to much.
- Synonyms:
- suppose, conjecture, guess
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to have some hint or foreknowledge of.
I think she suspected the surprise.
verb (used without object)
noun
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a person who is suspected, especially one suspected of a crime, offense, or the like.
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an animal or thing that is suspected to be the cause of something bad: The cause of the disease was not confirmed, but the suspect was an insect.
Investigators focused on faulty wiring as a suspect in the house fire.
The cause of the disease was not confirmed, but the suspect was an insect.
adjective
idioms
verb
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(tr) to believe guilty of a specified offence without proof
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(tr) to think false, questionable, etc
she suspected his sincerity
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(tr; may take a clause as object) to surmise to be the case; think probable
to suspect fraud
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(intr) to have suspicion
noun
adjective
Usage
What does sus mean? Sus is a shortening of suspicious or suspect. In slang, it has the sense of "questionable" or "shady."
Other Word Forms
- nonsuspect noun
- presuspect verb (used with object)
- suspecter noun
- suspectible adjective
- suspectless adjective
- unsuspecting adjective
- unsuspectingly adverb
Etymology
Origin of suspect
First recorded in 1250–1300; Middle English (adjective) from Latin suspectus, past participle of suspicere “to look up, look and see, regard with mistrust,” equivalent to su- “under, below, beneath” + -spicere, combining form of specere “to see, observe, keep an eye on, take into consideration”; (verb) partly from the adjective, partly from Middle French suspecter “to hold suspect,” or directly from Latin suspectāre, frequentative of suspicere; su-
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.
Cheap digital picture frames from unrecognizable brands are also suspect.
From The Wall Street Journal • Apr. 3, 2026
I suspect this would cause many families to reconsider the easy money being promised to them by lawyers.
From The Wall Street Journal • Mar. 31, 2026
The suspect approached the woman unprovoked while she was inside the store shopping.
From Los Angeles Times • Mar. 31, 2026
Figures recorded for all femicides in Scotland, where there was a relationship between the victim and the suspect, show the highest number of female homicides was 16 in the year 2021/22.
From BBC • Mar. 29, 2026
I went through the rest of the class, texting Lorren the suspect list as I thought of them.
From "Bye Forever, I Guess" by Jodi Meadows
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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.