Noun

• S: (n) 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"
• S: (n) sphere (any spherically shaped artifact)
• S: (n) sphere, sphere of influence (the geographical area in which one nation is very influential)
• S: (n) sector, sphere (a particular aspect of life or activity) "he was helpless in an important sector of his life"
• S: (n) sphere (a solid figure bounded by a spherical surface (including the space it encloses))
• S: (n) sphere (a three-dimensional closed surface such that every point on the surface is equidistant from the center)
• part meronym
• direct hypernym / inherited hypernym / sister term
• derivationally related form
• S: (n) 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)