before you know it
IdiomsExample Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
But before you know it, they’ve taken over your yard.
From Slate ● Sep. 11, 2026
It's a familiar pattern for many -- open your phone on a break and before you know it an hour has passed and you're still scrolling.
From Barron's ● Sep. 9, 2026
You invest that $650, let it compound over time, and before you know it, you’re a multimillionaire retiring by 60.
From MarketWatch ● Apr. 21, 2026
"Because if you are indifferent, before you know it, another Auschwitz will come out of the blue for you or your descendants," he warned.
From BBC ● Feb. 19, 2025
“Listen, Sophia. I just need a little time to think. I’ll be back before you know it, and then we’ll work everything out.”
From "It All Comes Down to This" by Karen English
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.