English

Noun

X's and O's pl ‎(plural only)

1. tic-tac-toe
2. (idiomatic, sports) The fundamental elements of a play.
   • 2006, Jerry Krause and Ralph Pim, Basketball Beyond the X's And O's: Lessons from the Legends
3. (idiomatic, management) The basic delineation of roles in a project.

Noun

X's and O's pl ‎(plural only)

1. Abbreviation of kisses and hugs.

   The college co-ed signed her letter to her mother with X's and O's.