coat vs coat of paint

coat and coat of paint both are nouns.

Word	Noun	Adjective	Verb	Adverb
coat	Yes	No	Yes	No
coat of paint	Yes	No	No	No

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

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

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