Ball
Globe
orb
a sphere is called a sphere because , well , its just a other name for a ball such as the earth.
the sphere.
A sphere is not a polyhedron because it has no edges, no vertices and no flat faces The word 'polyhedron' means many faces.
A sphere?
Sphere.
earth sphere
intelligent sphere
Globe Ball
Gazing ball
A Sphere (pronounced sfiya)
Sphere, orb, planet.
Another name for celestial globe is celestial sphere.
A hemisphere can also be referred to as a "half sphere."
hydro means water+sphere
Another word for domain could be area, arena or field. You can also use sphere, land or world, depending on the context.
An adjective for the word sphere is spherical.
Sphere is one syllable: sphere.