watchdog

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watch·dog / ˈwächˌdôg/ • n. a dog kept to guard private property. ∎  a person or group whose function is to monitor the practices of companies providing a particular service or utility: a watchdog for the global banking industry.• v. (-dogged, -dog·ging) [tr.] maintain surveillance over (a person, activity, or situation): how can we watchdog our investments?

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