() a person who works at the checkout in a supermarket （超市的）收款员，收银员◆a supermarket checker 超市收款员
() (used in compounds 用於复合词) a computer program that you use to check sth, for example the spelling and grammar of sth you have written （计算机的）检查程序⨁a grammar / spelling / virus checker 语法／拼写／病毒检查程序