The definition of a redundancy is something that is repeated unnecessarily or something that is not useful because there is already another or more advanced version.
A superfluous word or phrase.
Something reiterated or restated.
Repetition is the act of doing or saying something over and over and over again.
Find another word for tautology. In this page you can discover 11 synonyms, antonyms, idiomatic expressions, and related words for tautology, like: tautological, figure-of-speech, syllogism, disjunctive, negation, question-begging, redundancy, pleonasm, reiteration, repetition and non sequitur.