n Any spherical (or nearly spherical) object.
n The planet Earth.
n A spherical model of Earth or other planet.
n (dated or Australia, South Africa) A light bulb.
n A circular military formation used in Ancient Rome, corresponding to the modern infantry square.
n (slang, chiefly in the plural) A woman's breast.
n (obsolete) A group.
n A land snail of the genus Mesodon
v (intransitive) To become spherical.
v (transitive) To make spherical.
n A city, the county seat of Gila County, Arizona
n An unincorporated community in Clark County, Wisconsin