from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A dog trained to guard people or property.
- n. One who serves as a guardian or protector against waste, loss, or illegal practices.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. a guard dog
- n. a person or organization that monitors and publicizes the behavior of others (individuals, corporations, governments) to discover undesirable activity.
- v. To perform a function analogous to a watchdog.
- v. To guard and warn.
from the GNU version of the Collaborative International Dictionary of English
- n. A dog kept to watch and guard premises or property, and to give notice of the approach of intruders.
from The Century Dictionary and Cyclopedia
- n. A dog kept to watch or guard premises and property.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a guardian or defender against theft or illegal practices or waste
- n. a dog trained to guard property
From watch and dog. (Wiktionary)