: a dog that is trained to protect a place : a watchdog
Examples of guard dog in a Sentence
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The intruder might have been deterred by the couple’s two dogs — except that neither canine acted like a traditional guard dog.—
Grace Toohey,
Los Angeles Times,
16 Sep. 2026 Another, from 2009, is dominated by the profile of what appears to be a guard dog gripping a black hunk of something unidentifiable.—
Ben Davis,
The New York Review of Books,
25 Apr. 2026 Throughout the clip, Olivia rarely misses a step and even gets the Focker guard dog approval, winning Jack’s respect and Henry’s envy.—
Hattie Lindert,
Pitchfork,
16 Apr. 2026 With a guard dog nearby, the soldiers then pushed the detainee against a wall before the whole group surrounded themselves with shields presumably to block the view of security cameras.—
Matt Bradley,
NBC news,
4 Nov. 2025 See All Example Sentences for guard dog