Webster's English Dictionary

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sun

1. sun \'s*n\ n [ME sunne, fr. OE; akin to OHG sunna sun, L sol - more at 
   (MSOLAR 1a: the luminous celestial body around which the earth and other 
   planets re volve, from which they receive heat and light, and which has a 
   mean distance from earth of 93,000,000 miles, a linear diameter of 864,000 
   miles, a mass 332,000 times greater than earth, and a mean density about 
   one fourth that of earth 1b: a celestial body like the sun  2: the heat or 
   light radiated from the sun  3: one resembling the sun usu. in brilliance  
   4: the rising or setting of the sun {from ~ to ~}  5: GLORY, SPLENDOR  : in 
   the public eye  - in the sun 
2. sun vb or sunned;  or sun.ning : to expose to or as if to the rays of 
   the sun  : to sun oneself