[nawts-uh n-kraw-siz, -kros-iz]
noun (used with a singular verb) British.
Origin of noughts-and-crosses
First recorded in 1890–95
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
noughts and crosses
(functioning as singular) a game in which two players, one using a nought, "O", the other a cross, "X", alternately mark one square out of nine formed by two pairs of crossed lines, the winner being the first to get three of his symbols in a rowUS and Canadian term: tick-tack-toe, (US) crisscross
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012