sphere - definition, thesaurus and related words from WordNet-Online

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Noun sphere has 7 senses

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"
--₁ is a kind of environment
--₁ has particulars:
distaff; front; kingdom, land, realm; lap; political arena, political sphere; preserve; province, responsibility
sphere - any spherically shaped artifact
--₂ is a kind of artifact, artefact
--₂ has particulars: globe
sphere, sphere of influence - the geographical area in which one nation is very influential
--₃ is a kind of geographical area, geographic area, geographical region, geographic region
sector, sphere - a particular aspect of life or activity; "he was helpless in an important sector of his life"
--₄ is a kind of aspect, facet
--₄ has particulars: department
sphere - a solid figure bounded by a spherical surface (including the space it encloses)
--₅ is a kind of round shape
--₅ has particulars: conglomeration, conglobation; ball, globe, orb
sphere - a three-dimensional closed surface such that every point on the surface is equidistant from the center
--₆ is a kind of round shape
--₆ has parts: steradian, sr
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
--₇ is a kind of surface
--₇ has parts:
apex, solar apex, apex of the sun's way; celestial point; nadir; zenith; zodiac