Origin and Etymology of tic-tac-toe
First Known Use: circa 1866See Words from the same year
TIC-TAC-TOE Defined for English Language Learners
Definition of tic-tac-toe for English Language Learners
: a game in which one player draws Xs and another player draws Os inside a set of nine squares and each player tries to be the first to fill a row of squares with either Xs or Os
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