decoder vs intellectual

decoder and intellectual both are nouns.

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

As nouns, intellectual is a hypernym of decoder; that is, intellectual is a word with a broader meaning than decoder:

decoder: the kind of intellectual who converts messages from a code to plain text
intellectual: a person who uses the mind creatively

Other hypernyms of decoder include intellect.

decoder (noun)	intellectual (noun)
a machine that converts a coded text into ordinary language	a person who uses the mind creatively
the kind of intellectual who converts messages from a code to plain text

decoder (adjective)	intellectual (adjective)
	appealing to or using the intellect
	involving intelligence rather than emotions or instinct
	of or associated with or requiring the use of the mind