Definitions from Wiktionary (tautology)

▸ noun:  (uncountable) Redundant use of words, a pleonasm, an unnecessary and tedious repetition.
▸ noun:  (countable) An expression that features tautology.
▸ noun:  (countable, logic, propositional logic) A statement that is true for all truth values of its propositional variables.
▸ noun:  (countable, logic, first-order logic) A statement that is true for all truth values of its Boolean atoms.
▸ Also see tautology





▸ Words similar to tautologies
▸ Usage examples for tautologies

▸ Idioms related to tautologies
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▸ Popular adjectives describing tautologies
▸ Words that often appear near tautologies
▸ Rhymes of tautologies

▸ Invented words related to tautologies