noughts and crosses

from WordNet (r) 3.0 (2006)
noughts and crosses
    n 1: a game in which two players alternately put crosses and
         circles in one of the compartments of a square grid of nine
         spaces; the object is to get a row of three crosses or
         three circles before the opponent does [syn: {ticktacktoe},
         {ticktacktoo}, {tick-tack-toe}, {tic-tac-toe}, {tit-tat-
         toe}, {noughts and crosses}]
    

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