round vs beat

round and beat both are nouns.

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

As nouns, round and beat are synonyms defined as:

round (noun)	beat (noun)
(often plural) a series of professional calls (usually in a set order)	the act of beating to windward; sailing as close as possible to the direction from which the wind is blowing
the usual activities in your day	a stroke or blow
the activity of playing 18 holes of golf	a regular rate of repetition
any circular or rotating mechanism	the basic rhythmic unit in a piece of music
a charge of ammunition for a single shot	(prosody) the accent in a metrical foot of verse
a crosspiece between the legs of a chair	the rhythmic contraction and expansion of the arteries with each beat of the heart
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	the sound of stroke or blow
an outburst of applause	a regular route for a sentry or policeman
a cut of beef between the rump and the lower leg	a member of the beat generation; a nonconformist in dress and behavior
a serving to each of a group (usually alcoholic)	a single pulsation of an oscillation produced by adding two waves of different frequencies; has a frequency equal to the difference between the two oscillations
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)	beat (adjective)
having the shape or form of a circle	very tired
(of sounds) full and rich
(mathematics) expressed to the nearest integer, ten, hundred, or thousand

round (verb)	beat (verb)
become round, plump, or shapely	wear out completely
make round	be a mystery or bewildering to
bring to a highly developed, finished, or refined state	come out better in a competition, race, or conflict
express as a round number	beat through cleverness and wit
pronounce with rounded lips	hit repeatedly
attack in speech or writing	give a beating to; subject to a beating, either as a punishment or as an act of aggression
wind around; move along a circular course	stir vigorously
	strike (a part of one's own body) repeatedly, as in great emotion or in accompaniment to music
	strike (water or bushes) repeatedly to rouse animals for hunting
	shape by beating
	make by pounding or trampling
	produce a rhythm by striking repeatedly
	move rhythmically
	sail with much tacking or with difficulty
	move with a flapping motion
	indicate by beating, as with the fingers or drumsticks
	move with a thrashing motion
	move with or as if with a regular alternating motion
	make a rhythmic sound
	make a sound like a clock or a timer
	glare or strike with great intensity
	avoid paying
	be superior

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