Circular Shapes or Movements
A circulation
A circumference
Circumnavigation
A band or belt
A rotation
A circlet
Revolution
An ellipse
A hoop
A turn
A loop
A round
A girdle
A sphere
A cycle
A globe
Spiral
An orb
Oval
A disc
An orbit
A tour
A circuit
A coil, curl or curve
A cordon
A wheel, whirl or whorl
Gyration