from The American Heritage® Dictionary of the English Language, 4th Edition
- n. One who breaks into safes in order to steal items from them.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. One who breaks into safes, who practices safecracking.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a thief who breaks open safes to steal valuable contents
safe + cracker (Wiktionary)