Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.
EXAMPLES FROM THE WEB FOR HEAD-MASTERS
This, I recognise, is from the head-master, and the head-masters an awful bore.
The head-masters of schools say that it is a selfish game and that it is bad for them.
In this I think most of our English head-masters would agree with me.