from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A room or place especially in a school in which classes are conducted: a second-floor classroom; an outdoor classroom.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A room, often in a school, where classes take place
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a room in a school where lessons take place
class + room (Wiktionary)