IPA: /ˈskuːlruːm/
KK: /ˈskuːlˌruːm/
A room where students learn and teachers teach, typically found in a school.
The teacher arranged the desks in the schoolroom for the new semester.
Schoolroom → It is formed from "school" (from Greek *scholē*, meaning leisure or discussion) and "room" (from Old English *rum*, meaning space or area). The word "schoolroom" refers to a space designated for learning and discussion.
Think of a place where people gather for 'discussion' ('scholē') in a designated 'space' ('room') — that's what a schoolroom is.
No commonly confused words.