checker

definition: one of the flat round pieces used in playing the game of checkers
example:
speech part: noun
synonyms: chequer
definition: one who checks the correctness of something
example:
speech part: noun
synonyms:
definition: an attendant who checks coats or baggage
example:
speech part: noun
synonyms:
definition: to variegate with different colors, shades, or patterns
example:
speech part: verb
synonyms: chequer
definition: to mark into squares or draw squares on
example:
speech part: verb
synonyms: chequer

How checker is being used?