1(British English) [countable]a loose coat worn over other clothes to protect them from dirt, etcThe lab assistant was wearing a white overall.2overalls (British English) (North American Englishcoveralls)[plural]a loose piece of clothing like a shirt and trousers/pants in one piece, made of heavy cloth and usually worn over other clothing by workers doing dirty workThe mechanic was wearing a pair of blue overalls. compare boiler suit3overalls (alsobib overalls) (both North American English) (British Englishdungarees)[plural]a piece of clothing that consists of trousers/pants with an extra piece of cloth covering the chest, held up by strips of cloth over the shoulders
ˈəʊvərɔːl 
ˈoʊvərɔːl 
