impalement vs cruelty

impalement and cruelty both are nouns.

Word	Noun	Adjective	Verb	Adverb
impalement	Yes	No	No	No
cruelty	Yes	No	No	No

As nouns, cruelty is a hypernym of impalement; that is, cruelty is a word with a broader meaning than impalement:

impalement: the act of piercing with a sharpened stake as a form of punishment or torture
cruelty: a cruel act; a deliberate infliction of pain and suffering

Other hypernyms of impalement include inhuman treatment.

impalement (noun)	cruelty (noun)
the act of piercing with a sharpened stake as a form of punishment or torture	a cruel act; a deliberate infliction of pain and suffering
	the quality of being cruel and causing tension or annoyance
	feelings of extreme heartlessness