A tautophrase is a phrase or sentence that tautologically defines a term by repeating that term. The word was coined in 2006 by William Safire in The New York Times.
Examples include:
"Brexit means Brexit" (Theresa May) "Tomorrow is tomorrow" (Sophocles' Antigone) "Rose is a rose is a rose is a rose" (Gertrude Stein) "It is what it is" "If it works, it works" "Boys will be boys" "A win is a win" "A la guerre comme à la guerre" — A French phrase literally meaning "at war as at war", and figuratively roughly equivalent to the English phrase "All's fair in love and war" Qué será, será or Che será, será — English loan from Spanish and Italian respectively (although these phrases are ungrammatical in those languages), meaning "Whatever will be, will be." "Call a spade a spade" "When I fool around, I don't fool around."
See also
References Safire, William (2006). "On language: Tautophrases". The New York Times, May 7, 2006.
Safire, William (2006). "Tautophrases: what they are". The New York Times, May 7, 2006.