IPA: /ˈseɪlzˌruːm/
KK: /ˈseɪlzˌrum/
A room where products are shown and sold to customers.
The new salesroom features a variety of furniture for customers to explore.
Salesroom → It is formed from "sales" (from Old English *sala*, meaning a transaction or exchange) and "room" (from Old English *rum*, meaning space or area). The word "salesroom" refers to a space designated for conducting sales or transactions.
Think of a 'space' ('room') where 'transactions' ('sales') happen — that's what a salesroom is.
No commonly confused words.