round vs vitriol

round and vitriol both are nouns.

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

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

Other hyponyms of round include abuse, blackguard, clapperclaw, shout, claw, rip, whang, barrage, bombard, blister, scald, scorch, whip, rubbish.

round (noun)	vitriol (noun)
(often plural) a series of professional calls (usually in a set order)	abusive or venomous language used to express blame or censure or bitter deep-seated ill will
the usual activities in your day	(H2SO4) a highly corrosive acid made from sulfur dioxide; widely used in the chemical industry
the activity of playing 18 holes of golf
any circular or rotating mechanism
a charge of ammunition for a single shot
a crosspiece between the legs of a chair
a partsong in which voices follow each other; one voice starts and others join in one after another until all are singing different parts of the song at the same time
an outburst of applause
a cut of beef between the rump and the lower leg
a serving to each of a group (usually alcoholic)
a regular route for a sentry or policeman
the course along which communications spread
(sports) a division of a game during which one team is on the offensive
an interval during which a recurring sequence of events occurs

round (adjective)	vitriol (adjective)
having the shape or form of a circle
(of sounds) full and rich
(mathematics) expressed to the nearest integer, ten, hundred, or thousand

round (verb)	vitriol (verb)
become round, plump, or shapely	subject to bitter verbal abuse
make round	expose to the effects of vitriol or injure with vitriol
bring to a highly developed, finished, or refined state
express as a round number
pronounce with rounded lips
attack in speech or writing
wind around; move along a circular course

round (adverb)	vitriol (adverb)
from beginning to end; throughout