round vs blister

round and blister both are nouns.

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

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

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

round (noun)	blister (noun)
(often plural) a series of professional calls (usually in a set order)	(pathology) an elevation of the skin filled with serous fluid
the usual activities in your day	(botany) a swelling on a plant similar to that on the skin
the activity of playing 18 holes of golf	a flaw on a surface resulting when an applied substance does not adhere (as an air bubble in a coat of paint)
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)	blister (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)	blister (verb)
become round, plump, or shapely	get blistered
make round	cause blisters to form on
bring to a highly developed, finished, or refined state	subject to harsh criticism
express as a round number
pronounce with rounded lips
attack in speech or writing
wind around; move along a circular course

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