mac vs macintosh

mac and macintosh both are nouns.

Word	Noun	Adjective	Verb	Adverb
mac	Yes	No	No	No
macintosh	Yes	No	No	No

As nouns, mac and macintosh are synonyms defined as:

Other synonyms of mac include mack, mackintosh.

mac (noun)	macintosh (noun)
a waterproof raincoat made of rubberized fabric	a waterproof raincoat made of rubberized fabric
	a lightweight waterproof (usually rubberized) fabric