barbette vs hill

barbette and hill both are nouns.

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

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

barbette: (formerly) a mound of earth inside a fort from which heavy gun can be fired over the parapet
hill: structure consisting of an artificial heap or bank usually of earth or stones

Other hypernyms of barbette include mound.

barbette (noun)	hill (noun)
(formerly) a mound of earth inside a fort from which heavy gun can be fired over the parapet	(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

barbette (verb)	hill (verb)
	form into a hill