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TAKE THE QUIZ“alphabet cipher”
The following 2 entries include the term alphabet cipher.
multiple-alphabet cipher
noun: polyalphabetic substitution in which the choice of alphabets is limited (as by a key word) compare progressive-alphabet cipher
progressive-alphabet cipher
noun: a polyalphabetic substitution in which the choice of alphabets runs through them all in a definite order compare multiple-alphabet cipher
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Merriam-Webster unabridged
