From Longman Dictionary of Contemporary Englishwindow cleanerˈwindow ˌcleaner noun [countable] DHCBOsomeone whose job is to clean windows
Examples from the Corpus
window cleaner• The hearing was told that Mr Gannon, a self-employed window cleaner, died of spontaneous bacterial peritonitis.• The plaintiff window cleaner was instructed by his employers in the sill method of cleaning windows. 