ENGLISH DICTIONARY

Tautology

Definition, Meaning & Examples

Pronunciation /tɔˈtɒləd͡ʒi/ · Part of speech noun

Quick meaning: Tautology is a noun meaning (uncountable, rhetoric) Redundant use of words, a pleonasm, an unnecessary and tedious repetition.

Meaning

(uncountable, rhetoric) Redundant use of words, a pleonasm, an unnecessary and tedious repetition.

More Meanings

  1. (countable, rhetoric) An expression that features tautology.
  2. (countable, logic, propositional logic) A statement that is true for all truth values of its propositional variables.
  3. (countable, logic, first-order logic) A statement that is true for all truth values of its Boolean atoms.

Example Sentences

It is tautology to say, "Forward Planning".
Pure mathematics consists of tautologies, analogous to ‘men are men’, but usually more complicated.
The expression "raze to the ground" is a tautology, since the word "raze" includes the notion "to the ground".

Word Forms

Antonyms for tautology

Common opposites include contradiction, oxymoron.

Related Words

Related dictionary entries include pleonasm, perissology, pleonast, circumlocution, synathroesmus, polyptoton.

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Sources & Attribution

FreeDictionaryAPI.com / Wiktionary · Original source · CC BY-SA 4.0

Dictionary data is provided by FreeDictionaryAPI.com and sourced from Wiktionary under its stated license.