know by heart
IdiomsExample Sentences
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When we first encounter the couple, they’re roaming the Metropolitan Museum of Art — which, one gets the sense, they know by heart.
From Los Angeles Times • Jun. 2, 2026
At home, the team is beloved as the Steel Roses, which is also the title of their theme song that millions of Chinese know by heart.
From BBC • Jul. 27, 2023
"That's what I love," Hanley said, referring to the moment in which the images of the Beatles that fans know by heart suddenly appear right before their eyes.
From Salon • Jul. 7, 2023
At times, too, the production turns up the house lights to encourage spectators to sing along with numbers they know by heart.
From Washington Post • Dec. 4, 2022
Then we have a looonnnnng assembly and watch Martin Luther King’s “I Have a Dream” speech, which you know by heart from listening to it fifty-eleven times at home.
From "Booked" by Kwame Alexander
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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.