raincoat vs mac

raincoat and mac both are nouns.

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

As nouns, mac is a hyponym of raincoat; that is, mac is a word with a more specific, narrower meaning than raincoat:

Other hyponyms of raincoat include Burberry, macintosh, mack, mackintosh, trench coat.

raincoat (noun)	mac (noun)
a water-resistant coat	a waterproof raincoat made of rubberized fabric