n. a busybody; a person who watches or monitors other people's actions: a floorwalker, a detective, a hall-monitor. : Some old eagle-eye across the street saw me standing in the cold and called my wife who came down and let me in.
n. an eye or eyes with very keen vision. : Keep your eagle-eye trained on the entrance.
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition. Copyright 2007. Published by McGraw-Hill Education.
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