A round, three-dimensional geometric shape where every point on the surface is equidistant from the center. noun
The Earth is often described as a sphere, although it is slightly flattened at the poles.
In geometry class, we learned how to calculate the volume of a sphere.
A particular area of activity, interest, or expertise. noun
She has made significant contributions in the sphere of environmental science.
The political sphere can be challenging to navigate for newcomers.
A field or domain of influence or operation. noun
The company expanded its sphere of influence by acquiring several smaller firms.
In the sphere of public opinion, the new policy was met with mixed reactions.