from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A man armed with a gun, especially an armed criminal or a professional killer.
- n. A man skilled in the use of a gun.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A (usually male) criminal armed with a gun, especially a professional killer.
from The Century Dictionary and Cyclopedia
- n. A man employed in the manufacture of firearms.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a person who shoots a gun (as regards their ability)
- n. a professional killer who uses a gun
gun + -man (Wiktionary)