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View synonyms for

tautology

[taw-tol-uh-jee]

noun

plural

tautologies 
  1. needless repetition of an idea, especially in words other than those of the immediate context, without imparting additional force or clearness, as in “widow woman.”

  2. an instance of such repetition.

  3. Logic.

    1. a compound propositional form all of whose instances are true, as “A or not A.”

    2. an instance of such a form, as “This candidate will win or will not win.”



tautology

/ ˌtɔːtəˈlɒdʒɪkəl, tɔːˈtɒlədʒɪ /

noun

  1. the use of words that merely repeat elements of the meaning already conveyed, as in the sentence Will these supplies be adequate enough? in place of Will these supplies be adequate?

  2. logic a statement that is always true, esp a truth-functional expression that takes the value true for all combinations of values of its components, as in either the sun is out or the sun is not out Compare inconsistency contingency

“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Other Word Forms

  • tautological adjective
  • tautologic adjective
  • tautologous adjective
  • tautologist noun
  • ˌٲܳٴˈDz adverb
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Word History and Origins

Origin of tautology1

First recorded in 1570–80; from Late Latin tautologia, from Greek ٲܳٴDZDzí “repetition of something already said” (a term in rhetoric); tauto-, -logy
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Word History and Origins

Origin of tautology1

C16: from Late Latin tautologia, from Greek, from tautologos
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Example Sentences

Examples have not been reviewed.

Too true, in the way that tautologies always are: Anti-Jewish hatred is indeed antisemitism.

From

On one level, this is a fairly ridiculous tautology.

From

The problem with this narrative is that it’s just a pejorative tautology.

From

Blaming “high prices” on “profiteering” isn’t an explanation; it’s a tautology.

From

I just say “the novel”; which isn’t an answer, it’s a tautology — but a necessary one maybe.

From

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When To Use

doestautology mean?

A tautology is the unnecessary repetition of an idea, statement, or word whose meaning has already been expressed, as in 8 a.m. in the morning. (The label a.m. indicates the morning, so in the morning creates a tautology).Tautologies say the same thing twice without adding new information or emphasis.In logic, tautology has a more specific meaning: a statement that is always true, as in Statement 1 is true or not true or Either we will arrive on time or we will not arrive on time.  Example: My professor pointed out that the phrase “evening sunset” is a tautology because sunsets always happen in the evening.

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