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know one's own mind
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Idioms and Phrases
Be certain about what one wants; be decisive. For example, Don't ask him; he's so tired that he doesn't know his own mind , or She certainly knows her own mind when it comes to giving stage directions . This term was first recorded in 1824.Advertisement
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.
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