noun, plural tau·tol·o·gies.
- a compound propositional form all of whose instances are true, as “A or not A.”
- an instance of such a form, as “This candidate will win or will not win.”
Can be confusedredundancy tautology
Examples from the Web for tautology
Mainly because it is, as my annoying college roommate would term it, a tautology.The State of the Union Should Be More Like the Super Bowl|Kevin Bleyer|February 1, 2014|DAILY BEAST
It is tautology, for two sentences further on it is all expressed in its proper place, in referring to the history of the king.Junius Unmasked|Joel Moody
He utterly despised the avoidance of repetitions out of fear of tautology.Literary Friends And Acquaintances|William Dean Howells
When they grow up and have ideas which are beyond their powers of expression, especially in writing, tautology begins to appear.Cratylus|Plato
He doth likewise the same thing, is a tautology characteristic of the writer: il fet meismes ceste chose, F.
Wraxall panegyrizes him, and yet with a tautology of terms, which must have been the very reverse of Dunning's style.