Nouns

(n)round, unit of ammunition, one shota charge of ammunition for a single shot
(n)cycle, rhythm, roundan interval during which a recurring sequence of events occurs“the never-ending cycle of the seasons”
(n)beat, rounda regular route for a sentry or policeman“in the old days a policeman walked a beat and knew all his people by name”
(n)round(often plural) a series of professional calls (usually in a set order)“the doctor goes on his rounds first thing every morning”, “the postman's rounds”, “we enjoyed our round of the local bars”
(n)round of golf, roundthe activity of playing 18 holes of golf“a round of golf takes about 4 hours”
(n)round, daily roundthe usual activities in your day“the doctor made his rounds”
(n)turn, bout, round(sports) a division of a game during which one team is on the offensive
(n)roundthe course along which communications spread“the story is going the rounds in Washington”
(n)round, round of drinksa serving to each of a group (usually alcoholic)“he ordered a second round”
(n)rounda cut of beef between the rump and the lower leg
(n)round, trolla 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“they enjoyed singing rounds”
(n)roundan outburst of applause“there was a round of applause”
(n)rung, round, stavea crosspiece between the legs of a chair
(n)circle, roundany circular or rotating mechanism“the machine punched out metal circles”

Verbs

(v)roundwind around; move along a circular course“round the bend”
(v)round, round out, round offmake round“round the edges”
(v)round, labialize, labialisepronounce with rounded lips
(v)attack, round, assail, lash out, snipe, assaultattack in speech or writing“The editors of the left-leaning paper attacked the new House Speaker”
(v)polish, round, round off, polish up, brush upbring to a highly developed, finished, or refined state“polish your social manners”
(v)round off, round down, round out, roundexpress as a round number“round off the amount”
(v)round, flesh out, fill outbecome round, plump, or shapely“The young woman is fleshing out”

Adjectives

(a)round, circularhaving the shape or form of a circle
(s)orotund, rotund, round, pear-shaped(of sounds) full and rich“orotund tones”, “the rotund and reverberating phrase”, “pear-shaped vowels”
(s)round(mathematics) expressed to the nearest integer, ten, hundred, or thousand“in round numbers”

Adverbs

(r)round, aroundfrom beginning to end; throughout“It rains all year round on Skye”, “frigid weather the year around”