Watch(redirected from being on the watch)
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WATCH, police. To watch is, properly speaking, to stand sentry and attend guard during the night time: certain officers called watchmen are appointed in most of the United States, whose duty it is to arrest all persons who are violating the law, or breaking the peace. (q.v.) Vide 1 Bl. Com. 356; 1 Chit. Cr. Law, 14, 20.