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5 definitions found

From: DICT.TW English-Chinese Dictionary 英漢字典

 tau·tol·o·gy /tɔˈtɑləʤi/

From: Taiwan MOE computer dictionary


From: Network Terminology


From: Webster's Revised Unabridged Dictionary (1913)

 Tau·tol·o·gy n.  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 sound.

From: WordNet (r) 2.0

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