thatch vs roof

thatch and roof both are nouns.

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

As nouns, roof is a hypernym of thatch; that is, roof is a word with a broader meaning than thatch:

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

thatch (noun)	roof (noun)
a house roof made with a plant material (as straw)	a protective covering that covers or forms the top of a building
hair resembling thatched roofing material	protective covering on top of a motor vehicle
plant stalks used as roofing material	an upper limit on what is allowed
	the inner top surface of a covered area or hollow space

thatch (verb)	roof (verb)
cover with thatch	provide a building with a roof; cover a building with a roof