sphere
nounUK /sfɪə/
US /sfɪr/
A sphere is a round shape like a ball.
The Earth is shaped like a sphere.
OTHER MEANINGS
2. An area of activity or interest.
She works in the sphere of education.
3. A group of people with similar interests or power.
The new law affected the business sphere.
4. A round object used in games.
He kicked the sphere across the field.