Sphere
 

sphere
noun1.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.any spherically shaped artifact3.the geographical area in which one nation is very influential4.a particular aspect of life or activity; "he was helpless in an important sector of his life"[syn: sector]5.a solid figure bounded by a spherical surface (including the space it encloses)6.a three-dimensional closed surface such that every point on the surface is equidistant from the center7.the apparent surface of the imaginary sphere on which celestial bodies appear to be projected[syn: celestial sphere]