circle

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/ˈsɜɹkəl/ English

Definitions

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).”
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.
Any shape, curve or arrangement of objects that approximates to or resembles the geometric figures.“Children, please join hands and form a circle.”
A specific group of persons; especially one who shares a common interest.“circle of friends”

To travel around along a curved path.“The wolves circled the herd of deer.”
To surround.“A high fence circles the enclosure.”
To place or mark a circle around.“Circle the jobs that you are interested in applying for.”
To travel in circles.“Vultures circled overhead.”