sphere Definition

  • 1a round solid figure, or its surface, with every point on its surface equidistant from its center
  • 2an area of activity, interest, or expertise; a section of society or an aspect of life distinguished and unified by a particular characteristic

Using sphere: Examples

Take a moment to familiarize yourself with how "sphere" can be used in various situations through the following examples!

  • Example

    The Earth is a sphere.

  • Example

    He works in the political sphere.

  • Example

    She is an expert in the sphere of economics.

  • Example

    The company operates in the sphere of technology.

sphere Synonyms and Antonyms

Antonyms for sphere

Idioms Using sphere

  • out of one's sphere

    beyond one's usual or accustomed range of knowledge, influence, or authority


    As a scientist, he felt out of his sphere when asked to comment on political matters.

  • within one's sphere

    within one's usual or accustomed range of knowledge, influence, or authority


    As a professor of literature, she felt comfortable discussing topics within her sphere of expertise.

  • upper spheres

    the highest levels of society or power


    Only those in the upper spheres of government have access to classified information.

Phrases with sphere

  • an area or region over which a person or organization has significant cultural, economic, military, or political influence


    The United States and Russia have long competed for dominance in the sphere of influence in Eastern Europe.

  • the arena in which people come together to discuss and address issues of common concern, usually referring to the realm of politics and policy-making


    Social media has become an important tool for political engagement in the public sphere.

  • a particular area of work, study, or interest that a person is involved in


    Her sphere of activity includes research on climate change and environmental policy.

Origins of sphere

from Old French 'spere', from Latin 'sphaera', from Greek 'sphaira'


Summary: sphere in Brief

A 'sphere' [sfɪə(r)] can refer to a round solid figure or its surface, where every point on the surface is equidistant from the center. It can also refer to an area of activity, interest, or expertise, such as 'She is an expert in the sphere of economics.' Phrases like 'public sphere' and 'sphere of influence' denote specific areas of society or life, while idioms like 'out of one's sphere' and 'upper spheres' describe one's level of knowledge or social standing.

How do native speakers use this expression?