sphere
//sfɪər//
Noun
sphereSingular
spheresPlural
1
A round solid figure in which every point on its surface is equidistant from its center.
The Earth is not a perfect sphere, but it is close to one.
2
A ball or globe-shaped object.
The Earth is not a perfect sphere.
3
An area of activity, interest, or expertise; a field or domain.
She is well known in the sphere of international law.
4
A section of society or an aspect of life distinguished and unified by a particular characteristic.
She is well known in the sphere of international politics.