fur coat vs coat

fur coat and coat both are nouns.

Word	Noun	Adjective	Verb	Adverb
fur coat	Yes	No	No	No
coat	Yes	No	Yes	No

As nouns, coat is a hypernym of fur coat; that is, coat is a word with a broader meaning than fur coat:

fur coat: a coat made of fur
coat: an outer garment that has sleeves and covers the body from shoulder down; worn outdoors

fur coat (noun)	coat (noun)
a coat made of fur	growth of hair or wool or fur covering the body of an animal
	an outer garment that has sleeves and covers the body from shoulder down; worn outdoors
	a thin layer covering something

fur coat (verb)	coat (verb)
	cover or provide with a coat
	put a coat on; cover the surface of; furnish with a surface
	form a coat over