IPA: /ˈwɒʃˌbeɪsən/
KK: /ˈwɔʃˌbeɪsən/
A bowl or basin used for washing hands or face, typically found in bathrooms or kitchens.
She filled the washbasin with warm water to wash her face.
Washbasin → It is formed from "wash" (from Old English *wascan*, meaning to cleanse or make clean) and "basin" (from Old French *bacin*, meaning a shallow container). The word "washbasin" refers to a container used for washing or cleansing.
Think of 'washing' something to make it clean and a 'basin' as a container — together, a washbasin is a container for washing.
No commonly confused words.