tumulus vs hill

tumulus and hill both are nouns.

Word	Noun	Adjective	Verb	Adverb
tumulus	Yes	No	No	No
hill	Yes	No	Yes	No

As nouns, hill is a hypernym of tumulus; that is, hill is a word with a broader meaning than tumulus:

tumulus: (archeology) a heap of earth placed over prehistoric tombs
hill: structure consisting of an artificial heap or bank usually of earth or stones

Other hypernyms of tumulus include mound.

tumulus (noun)	hill (noun)
(archeology) a heap of earth placed over prehistoric tombs	(baseball) the slight elevation on which the pitcher stands
	structure consisting of an artificial heap or bank usually of earth or stones
	a local and well-defined elevation of the land

tumulus (verb)	hill (verb)
	form into a hill