learn (something) by heart(redirected from learn it by heart)
learn (something) by heart
To learn something very thoroughly; to memorize something. Ask Becky to recite the poem—she learned it by heart. You don't have to learn these principles by heart, we just want you to have a basic understanding of them.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
learn something by heart
Fig. to learn something so well that it can be written or recited without thinking; to memorize something. The director told me to learn my speech by heart. I had to go over it many times before I learned it by heart.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
learn by heart
Also, learn by rote. See under by heart.
The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.