Meaning

• One who checks or verifies something.

• One who makes a check mark.

• The clerk who tallies cost of purchases and accepts payment.

  "There was a long line at the grocery store because the checker was so slow."

• One who hinders or stops something.

Meaning

• A playing piece in the game of checkers (British: draughts).

• A pattern of alternating colours as on a chessboard.

Meaning

• The fruit of the wild service tree or chequer tree, Photinia villosa, syn. Sorbus terminalis