Tautology
English Meaning
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,
Addison.
And heavily in clouds brings on the day.
- Needless repetition of the same sense in different words; redundancy.
- An instance of such repetition.
- Logic An empty or vacuous statement composed of simpler statements in a fashion that makes it logically true whether the simpler statements are factually true or false; for example, the statement Either it will rain tomorrow or it will not rain tomorrow.