Definition of "argus" []

• An alert, observant person (noun)

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• "First Nations said ... argus is a nice top viewer but i prefer a roliflex for natural light. stupid squirrel."
• "I prefer to be good because it is good to be good, rather than because I can't be bad because some argus-eyed old frump won't let me have a chance to be bad."
• "• Wood white: up 600% since 2009, following major decline• Marsh fritillary: up 134%, after major decline• Common blue: up 146%• Brown argus: up 85%• Silver-spotted skipper: up 78%• Lulworth skipper: down 40%, worst ever year since records began• Meadow brown: down 20%, worst ever year• Essex skipper: down 33%, second worst year in scheme• Small skipper: down 17%• Wall brown: down 20%It was an ordinary school playing field until the diggers moved in."