monoliteral
cryptograph
nomenclator
substitution code
foursquare
cipherlike
atbash
autokey
unicryptal
cipher
cryptogram
secret writing
subcipher
cryptic
Vigenère cipher
passphrase
codemaking
Feistel network
cryptate
cryptographically
pigpen
passkey
tweakable
cryptophyte
cipherer
cryptogenesis
tweak
polygraphy
decoder ring
cryptanalytics
coded
cryptology
Playfair cipher
cryptography
cryptanalysis
polyalphabetic
keyphrase
signcryption
fractionation
Theban alphabet
substitution cipher
monoalphabetic
coding
steganography
encrypt
undercraft
cryptonymous
codesign
fractionate
Julius Caesar cipher
Caesar cipher
recipher
Threefish
telecipher
intracryptal
cryptocystal
cyclometer
malleability
public-key cryptography
cryptoviviparous
cryptogrammatic
cipherdom
Playfair
cryptosystem
cryptoprotocol
kite
cryptoquiz
crypto-
combination
encipher
cryptonymy
cryptographics
Twofish
cryptogrammatical
malleable
cryptorchis
dictionary attack
dot
microcryptocrystalline
cryptovariable
cryptogenous
cryptographical
ROT13
crypto-anarchist
blindable
key
microaphanitic
cryptanalyst
codebreaker
lockingly
monoliteral
cipherlike
autokey
foursquare
unicryptal
cryptic
tweakable
coded
polyalphabetic
monoalphabetic
cryptonymous
intracryptal
cryptocystal
cryptoviviparous
cryptogrammatic
cryptogrammatical
malleable
microcryptocrystalline
cryptogenous
cryptographical
blindable
microaphanitic
cryptographically
lockingly
cryptograph
nomenclator
substitution code
foursquare
atbash
cipher
cryptogram
secret writing
subcipher
Vigenère cipher
passphrase
codemaking
Feistel network
cryptate
pigpen
passkey
cryptophyte
cipherer
cryptogenesis
tweak
polygraphy
decoder ring
cryptanalytics
cryptology
Playfair cipher
cryptography
cryptanalysis
keyphrase
signcryption
fractionation
substitution cipher
coding
steganography
undercraft
Julius Caesar cipher
Caesar cipher
telecipher
cyclometer
malleability
public-key cryptography
cipherdom
Playfair
cryptosystem
cryptoprotocol
kite
cryptoquiz
combination
cryptonymy
cryptographics
cryptorchis
dictionary attack
dot
cryptovariable
ROT13
crypto-anarchist
key
cryptanalyst
codebreaker
cipher
cryptograph
encrypt
codesign
fractionate
recipher
encipher
English words for 'That uses a single letter as a cipher'
As you may have noticed, above you will find words for "That uses a single letter as a cipher". Hover the mouse over the word you'd like to know more about to view its definition. Click 
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all one's family
Not fixed
royal purple
to equal.
impounding
in that regard
affirming
hot spot
golden brown
an imp.
Rhea (moon of Saturn)
funicular railway
ichidan verb
fetish
wash drawing
the elements
to ride across
all things in nature
agglutinative language
drought damage
doctoral course
poppy
going back and forth
surrender.
to put on weight
cordial.
maximum.
hanafuda
to hint
first name
stubble
wardrobe
to chip
revised edition
commonly
motorbike
discontinuance
sometimes classified as a superorder
brow
to rot
instigator
to overpower
Twisted
rudely.
wilderness
absentmindedly
to submit
reverence
interval
area