codewords

/K OW1 D W ER0 D Z/
noun
  1. 1

    A string representing an encoded piece of text.

    โ€œBob cannot get any information out of the codeword since he doesn't know what transmission bases Alice used.โ€

  2. 2

    A word or phrase (or by extension a concept) used to make a (concealed) reference to another word or concept.

  3. 3

    A type of crossword puzzle where individual letters are represented by numbers and the solver must identify them by their position and frequency.

Source: https://en.wiktionary.org/wiki/codeword, https://en.wiktionary.org/wiki/codewords