What does "checker" mean?

Checker: To mark with small squares like a checkerboard, as by crossing stripes of different colors.

Additional senses

  1. 2.To variegate or diversify with different qualities, color, scenes, or events; esp., to subject to frequent alternations of prosterity and adversity. Our minds are, as it were, checkered with truth and falsehood. Addison.
  2. 3.A piece in the game of draughts or checkers.
  3. 4.A pattern in checks; a single check.
  4. 5.Checkerwork. Note: This word is also written chequer.

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