Synonyms for Circumference:

n.

attribute (noun)
perimeter.
circumference (noun)
perimeter.
edge, perimeter (noun)
outline, boundary, circuit, periphery, girth, rim, ambit, border, compass, bounds.
location (noun)
circuit.
outline (noun)
boundary, girth, delineation, silhouette, figure, border, perimeter, representation, skeleton, sketch, framework, periphery, configuration, plan, limit, profile, contour, tracing, form, wire frame, outline, drawing, frame.
roundabout (noun)
circus, circuit, circle, compass, areola, halo, loop, roundabout, ring, hemisphere, circuitousness, annulus, orbit, circularity.

Other synonyms:

edge, hypotenuse, ambit. cusp. sector. face. corner. side. Other relevant words:
corner, face, boundary, bounds, rim, sector, edge, hypotenuse, ambit.

Usage examples for circumference

  1. This shrinking of the circumference remained until it became absolutely necessary that it should be examined by the British Association. – A Budget of Paradoxes, Volume II (of II) by Augustus de Morgan
  2. But the growth would take place almost exclusively around the circumference of the reef, this being the only region in which the coral polypes would find the conditions favourable for their existence. – Autobiography and Selected Essays by Thomas Henry Huxley
  3. As both wheels are of the same size, it is obvious that if at the start we mark a point on the circumference of the upper wheel, at the very top, this point will be in contact with the lower wheel at its lowest part when half the journey has been made. – Amusements in Mathematics by Henry Ernest Dudeney