"spheres" in the noun sense
1. sphere, domain, area, orbit, field, arena
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
any spherically shaped artifact
3. sphere, sphere of influence
the geographical area in which one nation is very influential
4. sector, sphere
a particular aspect of life or activity
"he was helpless in an important sector of his life"
5. sphere
a solid figure bounded by a spherical surface (including the space it encloses)
6. sphere
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
the apparent surface of the imaginary sphere on which celestial bodies appear to be projected
Source: WordNet® (An amazing lexical database of English)
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