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mnemonic (EN)
adjective, noun

adjective “mnemonic”

base form mnemonic (more/most)
  1. designed to assist with memory
    To remember the colors of the rainbow, she used the mnemonic "ROY G. BIV" for Red, Orange, Yellow, Green, Blue, Indigo, Violet.

noun “mnemonic”

singular mnemonic, plural mnemonics or uncountable
  1. something that serves as a tool to remember something
    The mnemonic "PEMDAS," which stands for Parentheses, Exponents, Multiplication, Division, Addition and Subtraction, helps with remembering the order of operations in mathematics.