Longman Dictionary English From Longman Dictionary of Contemporary EnglishRelated topics: Waterlock keeperˈlock ˌkeeper noun [countable] TTWsomeone whose job is to open and close the gates of a lock on a canalExamples from the Corpuslock keeper• John Cryer, the lock keeper, and Tom Mercer, the engine driver, are at the left of the picture. ldoceonline.com
