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English Lexicon

Guard dog

/ˈɡɑːrd dɔːɡ/
nounCEFR B2 (Upper)Top #14200 frequency
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Comprehensive Definitions & Senses

2 senses
As noun
  1. 1

    A dog trained to protect property or people.

    "The guard-dog barked loudly at the intruder, alerting the homeowners."
  2. 2

    A dog that serves as a protector or sentinel.

    "Many businesses employ a guard-dog to deter theft and ensure safety."
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Thesaurus & Semantic Spectrum

Antonyms & Contrasting Words (1)

Linguistic Origin & Historical Etymology

The term is a compound of 'guard', derived from Old French 'warder' (to watch, keep, protect), and 'dog', stemming from Old English 'docga', a powerful breed of canine. First appearing in its combined form in the late 16th century, it reflects the historical domestication of dogs specifically utilized for property protection and sentry duties.

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