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English to English noun
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(logic) a statement that is necessarily true |  | Example: the statement `he is brave or he is not brave' is a tautology
source: wordnet30
| 2 |
useless repetition |  | Example: to say that something is `adequate enough' is a tautology
source: wordnet30
| 3 |
A repetition of the same meaning in different words; needless repetition of an idea in different words or phrases; a representation of anything as the cause, condition, or consequence of itself, as in the following lines: -- The dawn is overcast, the morning lowers, And heavily in clouds brings on the day. Addison. |  | source: webster1913
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