revilement vs vitriol

revilement and vitriol both are nouns.

Word	Noun	Adjective	Verb	Adverb
revilement	Yes	No	No	No
vitriol	Yes	No	Yes	No

As nouns, vitriol is a hyponym of revilement; that is, vitriol is a word with a more specific, narrower meaning than revilement:

revilement: a rude expression intended to offend or hurt
vitriol: abusive or venomous language used to express blame or censure or bitter deep-seated ill will

Other hyponyms of revilement include low blow, billingsgate, scurrility, cut, stinger, invective, vituperation.

revilement (noun)	vitriol (noun)
a rude expression intended to offend or hurt	abusive or venomous language used to express blame or censure or bitter deep-seated ill will
	(H2SO4) a highly corrosive acid made from sulfur dioxide; widely used in the chemical industry

revilement (verb)	vitriol (verb)
	subject to bitter verbal abuse
	expose to the effects of vitriol or injure with vitriol