IPA: /ˈwɔːʃruːm/
KK: /ˈwɔʃrum/
A room that contains a toilet and often a sink, typically found in public places or homes.
I need to find the washroom before the meeting starts.
Washroom → The word is formed from "wash" (from Old English *wascan*, meaning to cleanse or make clean) and "room" (from Old French *rom*, meaning a space or area). A washroom is a space designated for cleansing oneself.
Think of a place where you go to 'cleanse' ('wash') yourself in a designated 'space' ('room'). This helps you remember that a washroom is a place for washing.
No commonly confused words.