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 a given point (center).
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 (radius) from a given point.
3. The orbit of an astronomical body.
4. A circle of latitude.
5. A state of moving as to follow a circle; a route that forms a circle.
6. Any shape, curve or arrangement of objects that approximates to or resembles the geometric figures.
7. Any thin three-dimensional equivalent of the geometric figures.
8. A curve that more or less forms part or all of a circle.
9. 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.
10. A magic circle.
11. A ritual circle that is cast three times deosil and closes three times widdershins either in the a3ir with a wand or literally with stones or other items used for worship.
12. A traffic circle or roundabout.
13. A headband or diadem.
14. A road with a curve in it or that ends in a circle, e.g., a cul-de-sac.
15. A curved level of a balcony of seats in a theater.
16. 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…
17. A campfire circle.
18. A circle dance.
19. A specific group of persons; especially one who shares a common interest.
20. The people who associate with and follow someone; one's inner circle.