decipherer vs decoder

decipherer and decoder both are nouns.

Word	Noun	Adjective	Verb	Adverb
decipherer	Yes	No	No	No
decoder	Yes	No	No	No

As nouns, decipherer and decoder are synonyms defined as:

decipherer and decoder: the kind of intellectual who converts messages from a code to plain text

decipherer (noun)	decoder (noun)
a reader capable of reading and interpreting illegible or obscure text	a machine that converts a coded text into ordinary language
the kind of intellectual who converts messages from a code to plain text	the kind of intellectual who converts messages from a code to plain text