deduce

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English[edit]

Etymology[edit]

Borrowed from Latin dēdūcere, present active infinitive of dēdūcō (lead from, escort); from dē- (of, from) + dūcō (lead, pull).

Pronunciation[edit]

  • (UK) IPA(key): /dɪˈdjuːs/, IPA(key): /dɪˈdʒuːs/
  • (US) IPA(key): /dɪˈduːs/
  • (file)
  • Rhymes: -uːs

Verb[edit]

deduce (third-person singular simple present deduces, present participle deducing, simple past and past participle deduced)

  1. (transitive) To reach a conclusion by applying rules of logic to given premises.
    • (Can we date this quote by Alexander Pope and provide title, author's full name, and other details?)
      O goddess, say, shall I deduce my rhymes / From the dire nation in its early times?
    • (Can we date this quote by John Locke and provide title, author's full name, and other details?)
      Reasoning is nothing but the faculty of deducing unknown truths from principles already known.
    • (Can we date this quote by Sir Walter Scott and provide title, author's full name, and other details?)
      See what regard will be paid to the pedigree which deduces your descent from kings and conquerors.
  2. (obsolete) To take away; to deduct; to subtract.
    to deduce a part from the whole
    (Can we find and add a quotation of Ben Jonson to this entry?)
  3. (obsolete, Latinism) To lead forth.
    • (Can we date this quote by Selden and provide title, author's full name, and other details?)
      He should hither deduce a colony.

Usage notes[edit]

  • For example, from the premises "all good people believe in the tooth fairy" and "Jimmy does not believe in the tooth fairy", we deduce the conclusion "Jimmy is not a good person". This particular form of deduction is called a syllogism. Note that in this case we reach a false conclusion by correct deduction from a false premise.

Synonyms[edit]

Antonyms[edit]

  • (reach a conclusion by applying rules of logic): induce

Related terms[edit]

Translations[edit]

Anagrams[edit]


Italian[edit]

Verb[edit]

deduce

  1. third-person singular indicative present of dedurre

Latin[edit]

Verb[edit]

dēdūce

  1. second-person singular present active imperative of dēdūcō

Romanian[edit]

Etymology[edit]

Borrowed from Latin deducere, French déduire, with conjugation based on duce.

Verb[edit]

a deduce (third-person singular present deduce, past participle dedus3rd conj.

  1. (transitive) to infer, deduce (to conclude by reasoning or deduction, as from premises or evidence)

Conjugation[edit]


Spanish[edit]

Verb[edit]

deduce

  1. Informal second-person singular () affirmative imperative form of deducir.
  2. Formal second-person singular (usted) present indicative form of deducir.
  3. Third-person singular (él, ella, also used with usted?) present indicative form of deducir.