guard dog


: a dog that is trained to protect a place : a watchdog

Examples of guard dog in a Sentence

Recent Examples on the Web In another, Gomez is in the pool with a big guard dog standing by the side of the water. Aimée Lutkin, ELLE, 8 July 2023 Inspired by the killer robot dogs Boston Dynamics have been cooking up in their apocalyptic kennel, a killer robot guard dog kills two people in a desolate land with no other humans around. Evan Romano, Men's Health, 14 June 2023 The molecule sits on the surface of all of the cells in the body, basically acting like an overzealous guard dog. Erika Edwards, NBC News, 11 Mar. 2023 Once the new rules go into effect, building owners would have 10 years to complete the retrofits. $150,000 for a guard dog? Los Angeles Times, 1 Mar. 2023

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'guard dog.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

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Cite this Entry

“Guard dog.” Dictionary, Merriam-Webster, Accessed 25 Sep. 2023.

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