Word.ws English Dictionary

tautologies

tautologies is the plural of tautology.

Meaning of tautology

Noun

tautology (countable and uncountable, plural tautologies)

  1. (rhetoric, uncountable) Redundant use of words, a pleonasm, an unnecessary and tedious repetition.
    • It is tautology to say, "Forward Planning".
  2. (countable, rhetoric) An expression that features tautology.
    • The expression "raze to the ground" is a tautology, since the word "raze" includes the notion "to the ground".
  3. (countable, propositional logic) A statement that is true for all truth values of its propositional variables.
  4. (countable, first-order logic) A statement that is true for all truth values of its Boolean atoms.

Questions about tautologies

What is tautologies the plural of?
Tautologies is the plural of tautology.

Words near tautologies in the dictionary

  1. tautologia
  2. tautologic
  3. tautological
  4. tautologically
  5. tautologicalness
  6. tautologies
  7. tautologise
  8. tautologised
  9. tautologises
  10. tautologising
  11. tautologism

Source and license

Adapted from Wiktionary: tautologies (page history and authors); tautology (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “tautologies.” Word.ws, https://word.ws/tautologies. Based on Wiktionary, CC BY-SA 4.0.