[sun] n [ME sunne, fr. OE; akin to OHG sunna sun, L sol--more at solar] (bef. 12c) 1 a often cap: the luminous celestial body around which the earth and other planets revolve, from which they receive heat and light, and which has a mean distance from earth of 93,000,000 miles (150,000,000 kilometers), a linear diameter of 864,000 miles (1,390,000 kilometers), a mass 332,000 times greater than earth, and a mean density about one fourth that of earth b: a celestial body like the sun
2: the heat or light radiated from the sun
3: one resembling the sun (as in warmth or brilliance)
4: the rising or setting of the sun "from ~ to ~"
5: glory, splendor -- in the sun : in the public eye -- under the sun : in the world: on earth
[2]sun vb sunned ; sun.ning vt (15c): to expose to or as if to the rays of the sun ~ vi: to sun oneself