From Longman Dictionary of Contemporary Englishcheckercheck‧er /ˈtʃekə $ -ər/ noun [countable] 1 American EnglishWORKER someone who works at the checkout in a supermarket2 → spell/grammar checker3 someone who makes sure that something is written or done correctly4 → checkers → Chinese chequers
Examples from the Corpus
checker• He moved her around like a checker.• One of the most popular sites is the game room, where visitors can play chess, checkers and backgammon with others.• I played imaginary checkers on the linoleum grid of the barbershop floor.• You wonder about other things: a football game, a dance, that cute new checker at the market.• Sam doesn't play checkers with the old boys on the porch.• A spell checker, word count feature and thesaurus are all included and the program can handle headers and footers.• Spelling checkers can be used to correct miss-spelt words and typing mistakes.• The checkers at the airport were poker-faced but affable.From Longman Business Dictionarycheckercheck‧er /ˈtʃekə-ər/ noun [countable]1COMPUTING spell/ spelling/grammar checker a computer program that checks spelling or grammaran automatic grammar checker that searches for missing words, bad punctuation etc2JOBMANUFACTURINGsomeone whose job is to check that things are correct or done correctlyour quality control checker3American English someone who works in a SUPERMARKET, adding up the cost of the goods people buyOrigin checker 1. (1800-1900) → CHECK22. (1700-1800) checker “chessboard”; → CHECK24 