noun

• (astronomy) A star, especially when seen as the centre of any single solar system.
  "Because Haestrom's sun has overwhelmed the planet's protective magnetosphere, humans foolhardy enough to venture into geth-controlled Haestrom must exercise extreme caution. Minutes of radiation exposure will overload shields and hours of exposure will kill."
• (figurative) Something like the sun in brightness or splendor.
  "For the Lord God is the ſunne & ſhield vnto vs: […]"
• (uncountable, chiefly literary) Sunrise or sunset.
  "Imo[gen].[…]Prythee ſpeake, / How many ſtore of Miles may we well rid / Twixt houre, and houre? / Piſ[anio]. One ſcore 'twixt Sun, and Sun, / Madam's enough for you: and too much too. / Imo[gen]. Why, one that rode to's Excution Man, / Could neuer go ſo ſlow: […]"
• (cartomancy) The thirty-first Lenormand card.

verb

• (transitive) To expose to the heat and radiation of the sun.
  "Beautiful bodies lying on the beach, sunning their bronzed limbs."
• (transitive) To warm or dry in the sunshine.
• (intransitive) To be exposed to the sun.
• (intransitive, alternative medicine) To expose the eyes to the sun as part of the Bates method.

name

• (newspapers) An English tabloid newspaper.

name

• (rail transport) The station code of Sunny Bay in Hong Kong.