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sun
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sun
cutaway of the sun
sun  audio  (sn) KEY 

NOUN:
  1. often Sun A star that is the basis of the solar system and that sustains life on Earth, being the source of heat and light. It has a mean distance from Earth of about 150 million kilometers (93 million miles) a diameter of approximately 1,390,000 kilometers (864,000 miles) and a mass about 330,000 times that of Earth.
  2. A star that is the center of a planetary system.
  3. The radiant energy, especially heat and visible light, emitted by the sun; sunshine.
  4. A sunlike object, representation, or design.
VERB:
sunned, sun·ning, suns
VERB:
tr.
To expose to the sun's rays, as for warming, drying, or tanning.
VERB:
intr.
To expose oneself or itself to the sun.

IDIOMS:
in the sun
In the public eye.
under the sun
On the earth; in the world.

ETYMOLOGY:
Middle English, from Old English sunne; see swel- in Indo-European roots



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