commit to memory
Learn by heart, memorize, as in The director insisted that the altos commit their part to memory by Tuesday. First recorded in 1875, this phrase today is often replaced by the shorter memorize.
“Spring Forward, Fall Back” And Other Memory Tricks You’ve Probably ForgottenMnemonics (named after the Greek goddess of memory) are tricky little linguistic devices used to remember something ... and great mnemonics never go out of fashion. Let's take a look at a few.
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.