Definition of guard dog noun from the Oxford Advanced Learner's Dictionary


guard dog

BrE BrE//ˈɡɑːd dɒɡ//
; NAmE NAmE//ˈɡɑːrd dɔːɡ//
Domesticated mammals
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a dog that is kept to guard a building See related entries: Domesticated mammals
See the Oxford Advanced American Dictionary entry: guard dog