meat grinder vs hostility

meat grinder and hostility both are nouns.

Word	Noun	Adjective	Verb	Adverb
meat grinder	Yes	No	No	No
hostility	Yes	No	No	No

As nouns, hostility is a hypernym of meat grinder; that is, hostility is a word with a broader meaning than meat grinder:

Other hypernyms of meat grinder include aggression.

meat grinder (noun)	hostility (noun)
any action resulting in injury or destruction	violent action that is hostile and usually unprovoked
a mill for grinding meat	a hostile (very unfriendly) disposition
	the feeling of a hostile person
	a state of deep-seated ill-will