• Watchdog

    Origin

    From watch and dog.

    Full definition of watchdog

    Noun

    watchdog

    (plural watchdogs)
    1. a guard dog
    2. a person or organization that monitors and publicizes the behavior of others (individuals, corporations, governments) to discover undesirable activity.

    Verb

    1. To perform a function analogous to a watchdog.
    2. To guard and warn.
    © Wiktionary