monoalphabetic substitution

American  

[mon-oh-al-fuh-bet-ik suhb-sti-too-shuhn, mon-oh-] / ˈmɒn oʊˌæl fəˈbɛt ɪk ˌsʌb stɪˈtu ʃən, ˌmɒn oʊ- /

noun

Cryptography.

1. a system of substitution that uses only one cipher alphabet in a cryptogram so that each plaintext letter is always represented by the same cipher.

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Etymology

Origin of monoalphabetic substitution

1935–40; mono- + alphabetic ( def. )

Example Sentences

See Examples For:

monoalphabetic substitution

They were both fans of the monoalphabetic substitution cipher.”

From "Book Scavenger" by Jennifer Chambliss Bertman