watchdog
🇺🇸
/ˈwɑːtʃdɔːɡ/
🇬🇧
/ˈwɒtʃdɒɡ/
A person or group that ensures companies follow laws and respect people's rights.
The watchdog keeps an eye on how food is made to ensure it's safe for everyone.
A dog that guards a place, like a house or a building.
Our watchdog barked all night to keep strangers away from the house.