synthesiser vs intellectual

synthesiser and intellectual both are nouns.

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

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

Other hypernyms of synthesiser include intellect.

synthesiser (noun)	intellectual (noun)
(music) an electronic instrument (usually played with a keyboard) that generates and modifies sounds electronically and can imitate a variety of other musical instruments	a person who uses the mind creatively
an intellectual who synthesizes or uses synthetic methods

synthesiser (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