## CIRCLE

### Circle

A circle is a simple shape of Euclidean geometry that is the set of all points in a plane that are at a given distance from a given point, the centre. The distance between any of the points and the centre is called the radius. It can also be defined as the locus of a point equidistant from a fixed point.

The above text is a snippet from Wikipedia: Circle

### circle

#### Noun

1. A two-dimensional geometric figure, a line, consisting of the set of all those points in a plane that are equally distant from another point.
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).
2. 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 from another point.
3. Any thin three-dimensional equivalent of the geometric figures.
Put on your dunce-cap and sit down on that circle.
4. A curve that more or less forms part or all of a circle.
move in a circle
5. Orbit.
6. A specific group of persons.
inner circle
circle of friends
7. A line comprising two semicircles of 30 yards radius centred on the wickets joined by straight lines parallel to the pitch used to enforce field restrictions in a one-day match.
8. A ritual circle that is cast three times deosil and closes three times widdershins either in the air with a wand or literally with stones or other items used for worship.
9. A traffic circle or roundabout.
10. Compass; circuit; enclosure.
11. An instrument of observation, whose graduated limb consists of an entire circle. When fixed to a wall in an observatory, it is called a mural circle; when mounted with a telescope on an axis and in Y's, in the plane of the meridian, a meridian or transit circle; when involving the principle of reflection, like the sextant, a reflecting circle; and when that of repeating an angle several times continuously along the graduated limb, a repeating circle.
12. A series ending where it begins, and repeating itself.
13. A form of argument in which two or more unproved statements are used to prove each other; inconclusive reasoning.
14. Indirect form of words; circumlocution.
15. A territorial division or district.
The ten Circles of the Holy Roman Empire were those principalities or provinces which had seats in the German Diet.

#### Verb

1. To travel around along a curved path.
2. To surround.
3. To place or mark a circle around.
Circle the jobs that you are interested in applying for.
4. To travel in circles.