deduce
verb (used with object)
to derive as a conclusion from something known or assumed; infer.
deduced
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past participleof deduce.past participle
A verb form used in perfect and passive verb constructions and that can also function as a modifier.
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past tense formof deduce.past tense
Used to describe completed actions or previous habitual actions.
deduceverb (used with object)to derive as a conclusion from something known or assumed; infer.
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.
“Agatha Christie’s Tommy & Tuppence,” on BritBox starting Wednesday, is “based on the stories and characters of Agatha Christie,” which the detectives among you have deduced has something to do with … Agatha Christie.
From Los Angeles Times ● Sep. 16, 2026
After scouring job postings online and talking with local ranchers, he’s deduced that the land might soon be transformed into one of the many large-scale data centers moving into Montana over the past year.
From The Wall Street Journal ● Jul. 11, 2026
The analysts split out the ETFs that they deduced retail investors put their money in.
From MarketWatch ● Dec. 4, 2025
From this, they deduced that DNA must have a three-dimensional, double-helix structure - like a twisted ladder with rungs formed of alternating salt and phosphate groups.
From BBC ● Nov. 7, 2025
Bobby was smirking at her, she noted, and she deduced that it was a smirk of victory.
From "Breadcrumbs" by Anne Ursu
