Definition of "checker" []

• One, such as an inspector or examiner, that checks. (noun)
• One that receives items for temporary safekeeping or for shipment: a baggage checker. (noun)
• A game played on a checkerboard by two players, each using 12 pieces. (noun)
• One of the round flat pieces used in this game. (noun)
• A pattern of checks or squares. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Become a label checker and edit your shopping list: a good rule of thumb is the fewer and simpler the ingredients the better."
• "Josh: Actually, watching the path of his checker is like trying to figure out an M.C. Escher painting."
• "(I'm a terrible speller and my spell checker is woefully inadequate!)"