by heart

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Prepositional phrase[edit]

by heart

  1. (idiomatic) From unaided memory and in full detail.
    He used to live in that town, and he still knows all the streets by heart.
    • 1906, The Monthly Musical Record[1], volume 36, page 55:
      You should play over all the pieces you know by heart at least once a month or oftener with the printed copies before you: or all sorts of wrong notes may creep in, and you will be leaving out some crescendo, or rallentando, or sforzato.
    • 1945 August 17, George Orwell [pseudonym; Eric Arthur Blair], chapter 3, in Animal Farm [], London: Secker & Warburg, →OCLC:
      None of the other animals on the farm could get further than the letter A. It was also found that the stupider animals, such as the sheep, hens, and ducks, were unable to learn the Seven Commandments by heart.

Usage notes[edit]

Usually used with learn or know.



Derived terms[edit]



  • by heart”, in OneLook Dictionary Search.