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sun

[suhn] /sʌn/
noun
1.
(often initial capital letter) the star that is the central body of the solar system, around which the planets revolve and from which they receive light and heat: its mean distance from the earth is about 93 million miles (150 million km), its diameter about 864,000 miles (1.4 million km), and its mass about 330,000 times that of the earth; its period of surface rotation is about 26 days at its equator but longer at higher latitudes.
2.
the sun considered with reference to its position in the sky, its visibility, the season of the year, the time at which or the place where it is seen, etc.
3.
a self-luminous heavenly body; star.
4.
sunshine; the heat and light from the sun:
to be exposed to the sun.
5.
a figure or representation of the sun, as a heraldic bearing usually surrounded with rays and marked with the features of a human face.
6.
something likened to the sun in brightness, splendor, etc.
7.
Chiefly Literary.
  1. clime; climate.
  2. glory; splendor.
8.
sunrise or sunset:
They traveled hard from sun to sun.
9.
Archaic.
  1. a day.
  2. a year.
verb (used with object), sunned, sunning.
10.
to expose to the sun's rays.
11.
to warm, dry, etc., in the sunshine.
12.
to put, bring, make, etc., by exposure to the sun.
verb (used without object), sunned, sunning.
13.
to be exposed to the rays of the sun:
to sun in the yard.
Idioms
14.
against the sun, Nautical. counterclockwise.
15.
place in the sun, a favorable or advantageous position; prominence; recognition:
The new generation of writers has achieved a place in the sun.
16.
under the sun, on earth; anywhere:
the most beautiful city under the sun.
17.
with the sun, Nautical. clockwise.
Origin
900
before 900; Middle English sun, sonne, Old English sunne; cognate with German Sonne, Old Norse sunna, Gothic sunno; akin to Old Norse sōl, Gothic sauil, Latin sōl (see solar), Greek hḗlios (see helio-), Welsh haul, Lithuanian saũlė, Polish słońce
Related forms
sunlike, adjective

Sun.

1.
Also, Sund.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for sun
  • As the sun emerges from a long lull in activity, the star's emissions in the radio band of the spectrum have also picked up.
  • Most extrasolar planets have been revealed by observing their host star, or sun.
  • The sun's energy output varies slightly as sunspots wax and wane on the star's surface.
  • Planets orbiting stars beyond the sun are labelled merely with the name of the star and a suffix letter.
  • The sun frequently emits bursts of matter and energy called flares, which are triggered by a star's natural magnetic turbulence.
  • Still, it looks as if he's going to enjoy his moment in the sun.
  • The parents were concerned about the safety of the park because the sun shines into the eyes of the pitcher.
  • The sun seems to come alive with arcing loops that show magnetic field lines interacting above its surface.
  • It could even benefit them because the close hot sun roasting the planet is a major energy source.
  • Droughts and record-breaking heat have been giving the sun a bad name.
British Dictionary definitions for sun

sun

/sʌn/
noun
1.
the star at the centre of our solar system. It is a gaseous body having a highly compressed core, in which energy is generated by thermonuclear reactions (at about 15 million kelvins), surrounded by less dense radiative and convective zones serving to transport the energy to the surface (the photosphere). The atmospheric layers (the chromosphere and corona) are normally invisible except during a total eclipse. Mass and diameter: 333 000 and 109 times that of earth respectively; mean distance from earth: 149.6 million km (1 astronomical unit) related adjective solar
2.
any star around which a planetary system revolves
3.
the sun as it appears at a particular time or place: the winter sun
4.
the radiant energy, esp heat and light, received from the sun; sunshine
5.
a person or thing considered as a source of radiant warmth, glory, etc
6.
a pictorial representation of the sun, often depicted with a human face
7.
(poetic) a year or a day
8.
(poetic) a climate
9.
(archaic) sunrise or sunset (esp in the phrase from sun to sun)
10.
catch the sun, to become slightly sunburnt
11.
place in the sun, a prominent or favourable position
12.
(nautical) shoot the sun, take the sun, to measure the altitude of the sun in order to determine latitude
13.
touch of the sun, slight sunstroke
14.
under the sun, beneath the sun, on earth; at all: nobody under the sun eats more than you do
verb suns, sunning, sunned
15.
to expose (oneself) to the sunshine
16.
(transitive) to expose to the sunshine in order to warm, tan, etc
Derived Forms
sunlike, adjective
Word Origin
Old English sunne; related to Old High German sunna, Old Frisian senne, Gothic sunno

Sun.

abbreviation
1.
Sunday
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for sun
n.

Old English sunne, from Proto-Germanic *sunnon (cf. Old Norse, Old Saxon, Old High German sunna, Middle Dutch sonne, Dutch zon, German Sonne, Gothic sunno), from PIE *s(u)wen- (cf. Avestan xueng "sun," Old Irish fur-sunnud "lighting up"), alternative form of root *saewel- "to shine, sun" (see Sol).

Old English sunne was fem., and the fem. pronoun was used until 16c.; since then masc. has prevailed. The empire on which the sun never sets (1630) originally was the Spanish, later the British. To have one's place in the sun (1680s) is from Pascal's "Pensées"; the German imperial foreign policy sense (1897) is from a speech by von Bülow.

v.

1510s, "to set something in the sun," from sun (n.). Meaning "to expose oneself to the sun" is recorded from c.1600. Sun-bathing is attested from c.1600.

Online Etymology Dictionary, © 2010 Douglas Harper
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sun in Science
sun
  (sŭn)   

Often Sun. A medium-sized, main-sequence star located in a spiral arm of the Milky Way galaxy, orbited by all of the planets and other bodies in our solar system and supplying the heat and light that sustain life on Earth. Its diameter is approximately 1.4 million km (868,000 mi), and its mass, about 330,000 times that of Earth, comprises more than 99 percent of the matter in the solar system. It has a temperature of some 16 million degrees C (27 million degrees F) at its core, where nuclear fusion produces tremendous amounts of energy, mainly through the series of reactions known as the proton-proton chain. The energy generated in the core radiates through a radiation zone to an opaque convection zone, where it rises to the surface through convection currents of the Sun's plasma. The Sun's surface temperature (at its photosphere) is approximately 6,200 degrees C (11,200 degrees F). Turbulent surface phenomena analogous to the Earth's weather are prevalent, including magnetic storms, sunspots, and solar flares. The Sun was formed along with the rest of the solar system about 4.5 billion years ago and is expected to run out of its current hydrogen fuel in another 5 billion years, at which point it will develop into a red giant and ultimately into a white dwarf. See Table at solar system. See Note at dwarf star.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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sun in Culture

sun definition


The star around which the Earth revolves.

Note: The sun is about 4.5 billion years old and is expected to remain in its present state for approximately another six billion years; it will eventually evolve into a white dwarf.
The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Slang definitions & phrases for sun

sun

Related Terms

stick it


The Dictionary of American Slang, Fourth Edition by Barbara Ann Kipfer, PhD. and Robert L. Chapman, Ph.D.
Copyright (C) 2007 by HarperCollins Publishers.
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sun in Technology

Sun Microsystems
The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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Related Abbreviations for sun

Sun.

Sunday
The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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sun in the Bible

(Heb. shemesh), first mentioned along with the moon as the two great luminaries of heaven (Gen. 1:14-18). By their motions and influence they were intended to mark and divide times and seasons. The worship of the sun was one of the oldest forms of false religion (Job 31:26,27), and was common among the Egyptians and Chaldeans and other pagan nations. The Jews were warned against this form of idolatry (Deut. 4:19; 17:3; comp. 2 Kings 23:11; Jer. 19:13).

Easton's 1897 Bible Dictionary
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Idioms and Phrases with sun
The American Heritage® Idioms Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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