checker

nouns

an attendant who checks coats or baggage
checker
is derived from
check
is a type of (narrower)
someone who waits on or tends to or attends to the needs of another
attendant, attender, tender
one who checks the correctness of something
checker
is derived from
check
is a type of (narrower)
an investigator who observes carefully
"the examiner searched for clues"
examiner, inspector
one of the flat round pieces used in playing the game of checkers
checker, chequer

verbs

mark into squares or draw squares on; draw crossed lines on
check, checker, chequer
variegate with different colors, shades, or patterns
checker, chequer