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===== Tham khảo =====

*[http://foldoc.org/?query=tautology tautology] : Foldoc

=== Đồng nghĩa Tiếng Anh ===

=====N.=====

=====Repetition, redundancy, battology, pleonasm, iteration,tautologism; repetitiousness, repetitiveness, wordiness,prolixity, verbiage, verbosity, long-windedness: Clich‚s like'null and void' and 'cease and desist' are tautologies.Tautology, when called 'repetition', is often used forrhetorical effect.=====

=== Oxford===

=====N.=====

=====(pl. -ies) 1 the saying of the same thing twice over indifferent words, esp. as a fault of style (e.g. arrived oneafter the other in succession).=====

=====A statement that isnecessarily true.=====

=====Tautologic adj. tautological adj.tautologically adv. tautologist n. tautologize v.intr. (also-ise). tautologous adj. [LL tautologia f. Gk (as TAUTO-,-LOGY)]=====