from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A man who is the principal of a school, usually a private school.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A male school principal.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. presiding officer of a school
head + master. (Wiktionary)