Definitions

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

Etymologies

From watch and dog. (Wiktionary)

Examples

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