Meanings
How to pronounce "by heart":
US
AU
From unaided memory and in full detail.
Example Sentences
1
She knows the song by heart and can sing it perfectly.
2
After practicing for hours, he can recite the poem by heart.
3
The actor had memorized all his lines by heart.
4
I've studied these mathematical formulas so much that I know them by heart.
5
She has read that book so many times, she knows it by heart.