[ mon-oh-al-fuh-bet-ik, mon-oh- ]
/ ˈmɒn oʊˌæl fəˈbɛt ɪk, ˌmɒn oʊ- /
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.
13 Essential Literary TermsAristotle wrote that mastery over the art of metaphor is a sign of genius, but what does this literary term mean in its most basic form?
Compare polyalphabetic substitution.
Origin of monoalphabetic substitution
1935–40; mono- + alphabetic
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019