substitution ciphers

A form of substitution cipher — A method of encryption by which units of plaintext are substituted with ciphertext according to a regular system; the "units" may be single letters (the most common), pairs of letters, triplets of letters, mixtures of the above, and so forth. The receiver deciphers the text by performing an inverse substitution.

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Meanings

noun
  1. pluralplural of substitution cipher
Cite this entry
APA

substitution ciphers. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/substitution%20ciphers

MLA

“substitution ciphers.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/substitution%20ciphers. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “substitution ciphers,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/substitution%20ciphers.

Source: substitution ciphers on Wiktionary, CC BY-SA 4.0.