guarddog
nounUK /ˈɡɑːd.dɒɡ/
US /ˈɡɑːrd.dɔːɡ/
A guarddog is a dog that keeps people or places safe.
The guarddog barked loudly when a stranger came near the gate.
RELATED WORDS
OTHER MEANINGS
2. A person or group that fiercely protects someone or something.
The editor acted as a guarddog for the newspaper's reputation.
3. A software tool that monitors a system and alerts users to problems.
The guarddog program warned us about the suspicious file.
4. A dog trained to protect property or livestock.
Farmers often keep a guarddog with the sheep at night.