(round) adjective
1. Having such a contour that a section in some direction will be circular or approximately so; circular, spherical, or cylindrical.
2. Having a curved contour or surface; not angular or flat; convex or concave.
3. Liberal; ample; large: a good round fee.
4. Easy and free, as in motion; brisk: a round pace.
5. Of full cadence; well-balanced; full-toned: a round sentence or tone.
6. Made without reserve; bold; outspoken: a round assertion.
7. Open; just; honorable.
8. Formed or moving in rotation or a circle: a round dance.
9. Returning to the point of departure, usually by the same means of transportation: a round trip.
10. Passing through the same or a like series of mutations: the round year.
11. Free from fractions; also, not exact in the small denominations; especially, evenly divisible by 10: round numbers.
12. Semicircular: a round arch; also, characterized by the round arch: the round style.
13. Phonet. Labialized; rounded.
—noun
1. Something round, as a globe, ring, or cylinder, a rung of a ladder, a crossbar connecting the legs of a chair, a portion of the thigh of a beef, etc.
2. A circular course or range; circuit; beat: often in the plural; also, revolving motion or one revolution.
3. A series of recurrent movements; a routine; a completed succession or order: the daily round of life.
4. One of a series of concerted actions performed in succession by a number of persons: a round of toasts or applause.
5. One of the divisions of a boxing match; a bout.
6. In archery, the total number of arrows shot; the sum of all arrows in two or three ranges.
7. A short melody taken up at intervals by several voices; a rondo, roundel, or roundelay.
8. A firing by a company or squad in which each soldier fires once; volley.
9. A single charge of ammunition.
10. A round dance.
11. The state of being carved out on all sides: opposed to relief.
12. The state or condition of being circular; roundness.
13. A thick slice from a haunch: a round of beef.
—to go the rounds
1. To take the usual walk of inspection.
2. To pass from mouth to mouth or person to person of a certain group.
—v.t.
1. To make round.
2. To bring to completion; perfect: usually with off or out.
3. To free of angularity; fill out to fullness of form.
4. Phonet. To utter (a vowel) with the lips in a rounded position; labialize.
5. To travel or go around; make a circuit of.
6. Archaic To encircle; surround.
—v.i.
7. To become round.
8. To come to completeness or perfection.
9. To fill out; become plump.
10. To make a circuit; travel a circular course.
11. To turn around.
—to round off Math. To reduce the number of decimal places to which a number is carried in a calculation: usually, a final figure less than 5 is eliminated and a final figure of 5 or greater increases the preceding figure to its next highest value, as, 2.1414, rounded off, becomes 2.141; 3.14159 becomes 3.1416.
—to round up
1. To collect (cattle, etc.) in a herd, as for driving to market.
2. Colloq. To gather together; assemble.
—adverb
1. On all sides; in such a manner as to encircle: A crowd gathered round.
2. With a circular or rotating motion: The wheel turns round.
3. Through a circle or circuit; more or less completely from person to person or point to point: provisions enough to go round.
4. In circumference: a log 3 feet round.
5. From one view or position to another; hither and yon; to and fro.
6. In the vicinity: to hang round. See AROUND.
—prep.
1. Enclosing; encircling: a belt round his waist.
2. On every side of, or from every side toward; surrounding.
3. Toward every side from; about: He peered round him. [<OF roonde, fem. of roond <L rotundus. Doublet of ROTUND.]
—round′ness noun Synonyms (adj.): circular, curved, curvilinear, cylindrical, globose, globular, orbed, orbicular, plump, rotund, spherical, spheroidal. See BLUNT. Antonyms: angular, conical, cubical, flat, polygonal, quadrangular, quadrilateral, rectangular, square, triangular.
Round may appear as a combining form in hyphemes or solidemes:

(round) v.t. & v.i. Obs.
To whisper (to). [OE rūnian]