IPA: /ˈwɒʃˌwʊmən/
KK: /ˈwɔʃˌwʊmən/
A woman whose job is to wash clothes for others, often in a commercial setting.
The washwoman collected the dirty laundry every week.
Washwoman → It is formed from "wash" (from Old English *wascan*, meaning to cleanse with water) and "woman" (from Old English *wīfman*, meaning female human). The word "washwoman" refers to a woman who washes clothes or linens, typically as a profession.
Think of a woman who 'cleanses' ('wash') clothes — that's why a washwoman is someone who washes.