mackintosh vs raincoat

mackintosh and raincoat both are nouns.

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

As nouns, raincoat is a hypernym of mackintosh; that is, raincoat is a word with a broader meaning than mackintosh:

Other hypernyms of mackintosh include waterproof.

mackintosh (noun)	raincoat (noun)
a lightweight waterproof (usually rubberized) fabric	a water-resistant coat
a waterproof raincoat made of rubberized fabric