Etymology: Middle English, from Anglo-French rund, reund, from Latin rotundus — more at rotund
Date: 14th century
1 a (1): having every part of the surface or circumference equidistant from the center (2):cylindrical<a round peg>b: approximately round <a round face> 2: well filled out :plump, shapely 3 a:complete, full<a round dozen><a round ton>b: approximately correct; especially: exact only to a specific decimal or place <use the round number 1400 for the exact figure 1411>c: substantial in amount :ample<a good round price — T. B. Costain> 4: direct in utterance :outspoken<a round denunciation> 5: moving in or forming a circle 6 a: brought to completion or perfection :finishedb: presented with lifelike fullness or vividness 7: delivered with a swing of the arm <a round blow> 8 a: having full or unimpeded resonance or tone :sonorousb: pronounced with rounded lips :labialized 9: of or relating to handwriting predominantly curved rather than angular