synthesize vs synthesizer

synthesize is not a noun while synthesizer is a noun.

Word	Noun	Adjective	Verb	Adverb
synthesize	No	No	Yes	No
synthesizer	Yes	No	No	No

synthesize (noun)	synthesizer (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
	an intellectual who synthesizes or uses synthetic methods

synthesize (verb)	synthesizer (verb)
combine so as to form a more complex, product
combine and form a synthesis