circles

Noun

circle (plural circles)

1. A two-dimensional geometric figure, a line, consisting of the set of all those points in a plane that are equally distant from a given point (center).
   • The set of all points (x, y) such that (x − 1)² + y² = r² is a circle of radius r around the point (1, 0).
   1. (colloquial) A two-dimensional geometric figure, a disk, consisting of the set of all those points of a plane at a distance less than or equal to a fixed distance (radius) from a given point.
      • Near-synonyms: coil, ring, loop
   2. The orbit of an astronomical body.
   3. A circle of latitude.
      • the 49th circle
2. A state of moving as to follow a circle; a route that forms a circle.
   • The troops spent ten minutes marching in circle.
3. Any shape, curve or arrangement of objects that approximates to or resembles the geometric figures.
   • Children, please join hands and form a circle.

See all 46 meanings of circle