circ - coin
- circ saw
- circadian rhythm
- circannual
- Circassian walnut
- circinate
- circle
- circle action
- circle bend
- circle brick
- circle composition
- circle diagram
- circle division
- circle graph
- circle group
- circle of a triangle
- circle of confusion
- circle of convergence
- circle of curvature
- circle of declination
- circle of equal altitudes
- circle of equal probability
- circle of infinite radius
- circle of inversion
- circle of least confusion
- circle of rupture
- circle of stress
- circle of zero radius
- circle on surface
- circle packing
- circle polynomial
- circle pupil
- circle radius
- circle water flooding
- circle-preserving mapping
- circled convergence
- circled hill
- circled hull
- circled neighborhood
- circled set
- circled subset
