A fish of the wrasse family found in salt water off of eastern North America from Nova Scotia to South Carolina (Tautoga onitis).

plural of tautogram

A text in which all words start with the same letter (but not necessarily the same sound).

repetition; sameness

(mathematics) A curve, such that a heavy body, descending along it by the action of gravity, will always arrive at the lowest point in the same time, wherever in the curve it may begin to fall.

plural of tautochrone

Expressing the same thing with different words.

simple past tense and past participle of tautologize

To speak or write tautology; to repeat the same thing in different words.

Third-person singular simple present indicative form of tautologize