Meaning & Definition of word "Sphere"

Sphere

/sfɪər/

1. A perfectly round geometric object in three-dimensional space, where all points on the surface are equidistant from the center.
- Example: The Earth is not a perfect sphere, but it is approximately spherical in shape.
2. An area of activity, influence, or expertise.
- Example: She has made significant contributions in the sphere of environmental science.
3. A social or cultural domain.
- Example: The art sphere was abuzz with excitement over the new exhibition opening.
4. A ball or globe, especially in a decorative context.
- Example: The globe was carved into a beautiful sphere that caught everyone's eye.
5. A celestial body, especially a planet or a star.
- Example: Astronomers study the movements of celestial spheres in the night sky.

From Middle English 'sfer', derived from Latin 'sphaera', from Ancient Greek 'σφαῖρα' (sphaira) meaning 'ball'.

sphere of influence:

The area in which a person or organization has power or influence.

in the sphere of:

Within a particular area or field of activity.

outer sphere:

Referring to an external layer or environment.

spherical:

Having the shape of a sphere.

hemisphere:

Half of a spherical object, typically referring to the Earth.

spheroid:

A shape that resembles a sphere but is not perfectly round.

Meaning: A general term for an area of expertise or authority.

Example Sentence: He's a big deal in the tech sphere.

Meaning: Refers to social environments or circles.

Example Sentence: She runs in the same sphere as the city’s elite.