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sky's the limit, the

sky's the limit, the idiom

There is no limit (to ambition, aspirations, expense, or the like). For example, Order anything you like on the menu—the sky's the limit tonight, or He's so brilliant he can do anything—the sky's the limit. This metaphoric idiom was first recorded in 1920.

The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.