deduce

To deduce is to figure something out based on what you already know. When you see a person crying, it's easy to deduce that the person is sad. Unless they're happy, of course. Sometimes happy people cry.

Derived from the Latin ducere, meaning "to lead," a person who deduces something is "leading" their mind from one idea to the next. Deduction is a noun from the verb deduce: it's what we call something that we learn when we deduce. Sherlock Holmes, the famous investigator created by Arthur Conan Doyle, was a master of deduction. He could deduce from a few small clues all of the facts of a murder case.

Definitions of deduce
1

v reason by deduction; establish by deduction

Synonyms:
deduct, derive, infer
Types:
extrapolate
gain knowledge of (an area not known or experienced) by extrapolating
surmise
infer from incomplete evidence
elicit
derive by reason
Type of:
conclude, reason, reason out
decide by reasoning; draw or come to a conclusion

v conclude by reasoning; in logic

Synonyms:
infer
Type of:
conclude, reason, reason out
decide by reasoning; draw or come to a conclusion

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