granite vs firmness

granite and firmness both are nouns.

Word	Noun	Adjective	Verb	Adverb
granite	Yes	No	No	No
firmness	Yes	No	No	No

As nouns, firmness is a hypernym of granite; that is, firmness is a word with a broader meaning than granite:

granite: something having the quality of granite (unyielding firmness)
firmness: the quality of being steady or securely and immovably fixed in place

Other hypernyms of granite include steadiness.

granite (noun)	firmness (noun)
something having the quality of granite (unyielding firmness)	the quality of being steady or securely and immovably fixed in place
plutonic igneous rock having visibly crystalline texture; generally composed of feldspar and mica and quartz	the trait of being resolute
	the property of being unyielding to the touch
	the muscle tone of healthy tissue