dishwasher UK /ˈdɪʃˌwɒʃə/US /ˈdɪʃˌwɑʃɚ/ noun4 •A machine for washing dishes. •Someone who washes dishes, especially one hired to wash dishes in a restaurant.The chefs never cooked before, the cashiers never cashiered before, the dishwashers never dishwashed before, the waitresses never waitressed before, and the managers never managed before. — 2007 •(Australia) A bird, the restless flycatcher (Myiagra inquieta). •(dialect, UK) A European bird, the wagtail. formsdishwashers