Synonyms of sphere

1. sphere, domain, area, orbit, field, arena, environment: usage: a particular environment or walk of life; "his social sphere is limited"; "it was a closed area of employment"; "he's out of my orbit"
2. sphere, artifact, artefact: usage: any spherically shaped artifact
3. sphere, sphere of influence, geographical area, geographic area, geographical region, geographic region: usage: the geographical area in which one nation is very influential
4. sector, sphere, aspect, facet: usage: a particular aspect of life or activity; "he was helpless in an important sector of his life"
5. sphere, round shape: usage: a solid figure bounded by a spherical surface (including the space it encloses)
6. sphere, round shape: usage: a three-dimensional closed surface such that every point on the surface is equidistant from the center
7. celestial sphere, sphere, empyrean, firmament, heavens, vault of heaven, welkin, surface: usage: the apparent surface of the imaginary sphere on which celestial bodies appear to be projected