
Watchdog
Metaphorical Use
Used to describe someone observing critically, often to maintain integrity or ethical standards.

She is the classroom watchdog, ensuring students follow the honor code during exams.
Figurative Guardian
Implies a protective role, safeguarding the public interest or wellbeing.

Consumer rights groups serve as watchdogs, policing unfair business practices.
Active Oversight
This role is proactive, actively seeking and exposing problems, not just responding to them.

As a watchdog, the committee proactively audits accounts to prevent embezzlement.
Compare with
CustodianGuardianKeeperLookoutObserverProtectorSentinelWarden
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