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ace out

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1

Get the better of, defeat, as in Our team is bound to ace them out, or Those calculus problems aced me out again. [Slang; mid-1900s]

2

Take advantage of or cheat someone, as in John thought they were trying to ace him out of his promised promotion. [Slang; c. 1920]

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The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
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