shingle vs roof

shingle and roof both are nouns.

Word	Noun	Adjective	Verb	Adverb
shingle	Yes	No	Yes	No
roof	Yes	No	Yes	No

As verbs, roof is a hypernym of shingle; that is, roof is a word with a broader meaning than shingle:

shingle (noun)	roof (noun)
a small signboard outside the office of a lawyer or doctor, e.g.	a protective covering that covers or forms the top of a building
building material used as siding or roofing	protective covering on top of a motor vehicle
coarse beach gravel of small waterworn stones and pebbles (or a stretch of shore covered with such gravel)	an upper limit on what is allowed
	the inner top surface of a covered area or hollow space

shingle (verb)	roof (verb)
cover with shingles	provide a building with a roof; cover a building with a roof