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Meaning of TAUTOLOGY

Pronunciation:  to'tâlujee

WordNet Dictionary
  1. [n]  useless repetition; "to say that something is `adequate enough' is a tautology"
  2. [n]  (logic) a statement that is necessarily true; "the statement `he is brave or he is not brave' is a tautology"

TAUTOLOGY is a 9 letter word that starts with T.


 See Also: repetitiousness, repetitiveness, true statement, truth



Webster's 1913 Dictionary
\Tau*tol"o*gy\, n. [L. tautologia, Gr. ?: cf. F.
tautologie.] (Rhet.)
A repetition of the same meaning in different words; needless
repetition of an idea in different words or phrases; a
representation of anything as the cause, condition, or
consequence of itself, as in the following lines:

      The dawn is overcast, the morning lowers, And heavily
      in clouds brings on the day.             --Addison.

Syn: Repetition.

Usage: {Tautology}, {Repetition}. There may be frequent
       repetitions (as in legal instruments) which are
       warranted either by necessity or convenience; but
       tautology is always a fault, being a sameness of
       expression which adds nothing to the sense or the

Computing Dictionary

A proposition which is always true.

Compare: paradox.

the linguistic smarandache tautologies,.