know by heart

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

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

“How Does Santa Go Down the Chimney?” isn’t a timeless classic that kids are likely to know by heart as they do “The Night Before Christmas.”

From Salon • Dec. 11, 2025

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

They have carefully studied national abortion guidelines and they know by heart some protocols established by the World Health Organization.

From Seattle Times • Apr. 2, 2023

I stare at Matilde’s message, the neat, round letters and numbers that I already know by heart.

From "The Queen of Water" by Laura Resau