sphere

word

/ˈsfɪɹ/
sfeer
/sfˈiə/
sfee-uh

Definition

A sphere is a perfectly round, three-dimensional object, like a ball. It can also mean an area or field of activity, influence, or knowledge.

Usage & Nuances

'Sphere' is formal and technical in geometry and science, while the figurative meaning ('sphere of influence', 'private sphere') is common in academic and formal writing. For round shapes, use 'ball' in informal situations. Don't confuse with 'circle' (2D).

Example Sentences

A basketball is shaped like a sphere.

basic

Earth is almost a perfect sphere.

basic

The ball rolled because it is a sphere.

basic

The company operates within the sphere of technology.

natural

Social media changed the sphere of communication.

natural

He focuses on politics but stays out of the business sphere.

natural