0 a game played on a piece of paper in which two players write either O or X in a pattern of nine squares. It is won by the first player who places three Os or three Xs in a straight line.
Compare chess with noughts and crosses.
We are assuming that this hypercube is completely filled with noughts and crosses.
Under these conditions, figures lose their significance and become mere noughts and crosses.
He was putting his noughts and crosses and his ones and twos on a piece of paper.
At the end of the war there was a paper filled in like noughts and crosses.
You had better get a new set of lessons in noughts and crosses, and see which is going to work out.
