Scrabble?! CHECKER

Definitions of CHECKER in various dictionaries:

noun - an attendant who checks coats or baggage

noun - one who checks the correctness of something

noun - one of the flat round pieces used in playing the game of checkers

verb - mark into squares or draw squares on

verb - variegate with different colors, shades, or patterns

One, such as an inspector or examiner, that checks.

One that receives items for temporary safekeeping or for shipment: a baggage checker.

A game played on a checkerboard by two players, each using 12 pieces.

One of the round, flat pieces used in this game.

A pattern of checks or squares.

One of the squares in such a pattern.

A cashier.

To mark with a checked or squared pattern.

To diversify (something) in color, shading, or character; variegate.

verb - to mark with squares