tautology Meaning & Definition
What Does Tautology Mean?
Tautology is used as a noun meaning Redundant use of words, a pleonasm, an unnecessary and tedious repetition. It is also used to mean An expression that features tautology.
Tautology: Key Facts
| Part of speech | noun |
|---|---|
| Pronunciation | /tɔːˈtɒləd͡ʒi/ |
| Antonyms | contradiction in terms, contradiction and oxymoron |
| Plural | tautologies |
Tautology Definition (Noun)
- Redundant use of words, a pleonasm, an unnecessary and tedious repetition.
It is tautology to say, "Forward Planning".
- An expression that features tautology.
The expression "raze to the ground" is a tautology, since the word "raze" includes the notion "to the ground".
- A statement that is true for all truth values of its propositional variables.
- A statement that is true for all truth values of its Boolean atoms.
Noun
- In propositional logic: a statement that is true for all truth values of its propositional variables. In first-order logic: a statement that is true for all truth values of its Boolean atoms.
Synonyms of Tautology
The source does not list synonyms for this entry.
Tautology synonyms and antonyms →Antonyms of Tautology
Tautology in a Sentence
It is tautology to say, "Forward Planning".
The expression "raze to the ground" is a tautology, since the word "raze" includes the notion "to the ground".
Word Forms & Grammar
tautology (countable and uncountable, plural tautologies)
Words That Rhyme With Tautology
Origin of Tautology
From Late Latin tautologia, from Ancient Greek ταὐτολογία (tautología) from ταὐτός (tautós, “the same”) + λόγος (lógos, “explanation”). By surface analysis, tauto- + -logy.
Tautology: Your Questions Answered
What part of speech is tautology?
Tautology is a noun.
What is the opposite of tautology?
Antonyms of tautology include contradiction in terms, contradiction and oxymoron.
What is the plural of tautology?
The plural of tautology is tautologies.