SphereWordNet Explorer

a man-made object taken as a whole

a sphere on which a map (especially of the earth) is represented

a particular aspect of life or activity

a distinct feature or element in a problem

a specialized sphere of knowledge

the apparent surface of the imaginary sphere on which celestial bodies appear to be projected

the extended two-dimensional outer boundary of a three-dimensional object

the point on the celestial sphere toward which the sun and solar system appear to be moving relative to the fixed stars