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Definitions

guard dog

NOUN
dog for protection
Synonyms


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Anatol Ward, a Tokyo resident in his 50s, said the robot reminded him of a guard dog.

From Barron's • Jan. 30, 2026

Why buy a guard dog when the neighbor owns a wolf?

From MarketWatch • Jan. 10, 2026

The breed “is not the best choice for a guard dog since they are extremely friendly, even with strangers,” according to the United Kennel Club.

From Los Angeles Times • Jul. 22, 2025

But now, Young and a colleague have published new research that suggests farmers could turn to an ancient human ally, the guard dog, to scare grizzlies away cheaply and effectively.

From Science Magazine • Apr. 11, 2024

Cerberus, the guard dog of Hades, appeared out of the gloom—a threeheaded rottweiler so big he made Mrs. O’Leary look like a toy poodle.

From "The Last Olympian" by Rick Riordan



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