n. The central body of the solar system, around which the earth and other planets revolve, retained in their orbits by its attraction, and supplied with energy by its radiance.n. The sunshine; a sunny place; a place where the beams of the sun fall: as, to stand in the sun (that is, to stand where the direct rays of the sun fall).n. Anything eminently splendid or luminous : that which is the chief source of light, honor, glory, or prosperity.n. The luminary or orb which constitutes the center of any system of worlds: as, the fixed stars may be suns in their respective systems.n. A revolution of the earth round the sun; a year.n. The rising of the sun; sunrise; day.n. In heraldry, a bearing representing the sun, usually surrounded by rays.n. In electric lighting, a group of incandescent lamps arranged concentrically under a reflector at, near, or in the ceiling of a room or auditorium.To expose to the sun's rays; warm or dry in the sunshine; insolate: as, to sun cloth.To become warm or dry in the sunshine.n. See sunn.n. A Japanese measure of length, equal to of a meter, or 1.19 inches.n. An amended spelling of son.