arc [-s] n

OFr < L. arcum, bow, arch, curve.

  1. Orbit; ellipse; circular path.
  2. Expanse; area; space; realm; domain; universe; reality.
  3. Upward trajectory; curved path into the sky.
  4. Bow; arch; dome; vault; [word play on “architecture”] overpass; suspension bridge; [fig.] spider's web; network of suspended fibers.
  5. Length of a semi-circle; geometric measurement of part of a circle; [fig.] extent; degree; magnitude; scale; intensity; power; strength.
  6. Crescent; curved line; [fig.] wingspan.