\ ˈsən How to pronounce sun (audio) \

Definition of sun

 (Entry 1 of 3)

1a often capitalized : the luminous celestial body around which the earth and other planets revolve, from which they receive heat and light, which is composed mainly of hydrogen and helium, and which has a mean distance from earth of about 93,000,000 miles (150,000,000 kilometers), a linear diameter of 864,000 miles (1,390,000 kilometers), and a mass 332,000 times greater than earth
b : a celestial body like the sun : star
2 : the heat or light radiated from the sun played in the sun all day
3 : one resembling the sun (as in warmth or brilliance)
4 : the rising or setting of the sun from sun to sun
in the sun
: in the public eye
under the sun
: in the world : on earth


sunned; sunning

Definition of sun (Entry 2 of 3)

transitive verb

: to expose to or as if to the rays of the sun

intransitive verb

: to sun oneself

Definition of Sun (Entry 3 of 3)


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Synonyms for sun

Synonyms: Noun

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Examples of sun in a Sentence

Noun The rain has stopped and the sun is shining. The sun rises in the east and sets in the west. the warmth of the sun's rays They dream of traveling to distant suns. Try to keep out of the sun. The cat lay basking in the sun. Verb People sunned themselves on the hillside.
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Recent Examples on the Web: Noun Many New York City industry socialites were in attendance under the afternoon sun on the Hudson River. Cassell Ferere, Forbes, 14 Sep. 2021 Even the statuesque palm trees are still growing under the desert sun. Megan Wood, Travel + Leisure, 10 Sep. 2021 What follows is a delicate tale that widens Daniel’s horizons and those of his lover Sara under a scorching sun. Emiliano Granada, Variety, 9 Sep. 2021 As a girl, Shakira heard stories from her mother of the old days in her village, Pan Killay, which was home to about eighty families: the children swimming in the canal under the warm sun, the women pounding grain in stone mortars. Anand Gopal, The New Yorker, 6 Sep. 2021 Mark Jacob, 52, waited on one such line on Airline Highway in LaPlace, where the volunteer Cajun Army distributed water and hot meals the other day at a parking lot under a torturous sun. Ray Sanchez, CNN, 6 Sep. 2021 In short order, Mills was disembarking on a tarmac under a shimmering L.A. sun. Washington Post, 5 Sep. 2021 About 25 miles to the south, Steve Loeffler stands under a glaring sun outside his family farm a half-hour drive west of Lake Erie., 2 Sep. 2021 The country singer recently took a trip to the Gulf of Mexico with her family for some fun under the sun. Chaise Sanders, Country Living, 2 Sep. 2021 Recent Examples on the Web: Verb On Saturday, high pressure will bring a mixture of clouds and sun with high temperatures in the 80s., 21 Aug. 2021 Rykken said it's become common to see turtles climb onto the structure to sun themselves. Paul A. Smith, Milwaukee Journal Sentinel, 4 June 2021 Until shade nudges sun out of the spotlight, Americans will have to protect themselves, dermatologists say. Washington Post, 12 Feb. 2021 Metal keeper slots will help to keep sweat and sun out of his eyes. Jean Chen Smith, The Enquirer, 15 May 2021 Continuous exposure to sun without protection can have continuous long-term damaging effects. Deena Campbell, Essence, 11 May 2021 Iguanas sun themselves in the mangroves along the banks of the water; blue herons stretch their wings and call out their version of a song. Sheila Marikar, Fortune, 4 Apr. 2021 Or playing in Florence, in Santo Spirito, a public square where people gather on the weekends from sundown to sun up, near the Duomo. Kaitlin Menza, Condé Nast Traveler, 5 Mar. 2021 Cooler with intervals of clouds and sun with a 20% chance of showers. Dallas News, 4 Mar. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'sun.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of sun


before the 12th century, in the meaning defined at sense 1a


15th century, in the meaning defined at transitive sense

History and Etymology for sun


Middle English sunne, from Old English; akin to Old High German sunna sun, Latin sol — more at solar

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Time Traveler for sun

Time Traveler

The first known use of sun was before the 12th century

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Dictionary Entries Near sun




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Statistics for sun

Last Updated

19 Sep 2021

Cite this Entry

“Sun.” Dictionary, Merriam-Webster, Accessed 20 Sep. 2021.

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More Definitions for sun



English Language Learners Definition of sun

 (Entry 1 of 2)

: the star that the Earth moves around and that gives the Earth heat and light
: any star that has planets which move around it
: the heat or light produced by the sun : sunshine or sunlight



English Language Learners Definition of sun (Entry 2 of 2)

: to sit or lie in the light of the sun especially in order to make your skin darker


\ ˈsən How to pronounce sun (audio) \

Kids Definition of sun

 (Entry 1 of 3)

1 : the heavenly body in our solar system whose light makes our day and around which the planets revolve
2 : sunshine sense 1 I'm going outside to get some sun.
3 : a heavenly body like our sun


sunned; sunning

Kids Definition of sun (Entry 2 of 3)

: to expose to or lie or sit in the rays of the sun



Kids Definition of Sun.


More from Merriam-Webster on sun

Nglish: Translation of sun for Spanish Speakers

Britannica English: Translation of sun for Arabic Speakers Encyclopedia article about sun


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