sun

noun
\ 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

sun

verb
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)

Sunday

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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 Earlier this year, astronomers confirmed there were two Earth-like planets orbiting the cool, faint red dwarf Proxima Centauri—the closest star to our sun at 4.2 light-years away. Paola Rosa-aquino, Popular Science, "Violent space weather could limit life on nearby exoplanets," 11 Dec. 2020 The young pair of stars, only about 15 million years old compared to our 4.5 billion-year-old sun, are surrounded by a dusty disk of debris. Ashley Strickland, CNN, "Hubble observes strange, distant exoplanet similar to 'Planet Nine' that may exist in our solar system," 11 Dec. 2020 Oldest material found on Earth is more ancient than our solar system Billions of years before our sun winked into existence, a dying star flung dust out into space. Science, "10 awesome science discoveries you may have missed in 2020," 3 Dec. 2020 Get your sun hours in today as clouds dominate Friday and Saturday. Washington Post, "D.C.-area forecast: Sunny and milder today, but a wet and windy start to the weekend," 3 Dec. 2020 With a special new measurement, scientists have proven our sun does multiple fusions. Caroline Delbert, Popular Mechanics, "The Sun Is Experiencing a Second Fusion," 1 Dec. 2020 The research, published in the scientific journal Monthly Notices of the Royal Astronomical Society, has identified 1,004 stars that are similar to our sun that may have Earth-like planets in their orbit. Chris Ciaccia, Fox News, "Can ET see us? Some planets beyond solar system can view Earth, researchers find," 1 Dec. 2020 Of all the terrestrial worlds orbiting our sun, only Earth boasts both, largely because of the heat still locked in its interior. Marcus Woo, Scientific American, "Stellar Smashups May Fuel Planetary Habitability, Study Suggests," 17 Nov. 2020 As reconstructed by Nicholl and his team, a star about the size and mass of our own sun wandered into the center of the galaxy and came too close — about 100 million miles — to the black hole. Dennis Overbye New York Times, Star Tribune, "A black hole's lunch: stellar spaghetti," 8 Nov. 2020 Recent Examples on the Web: Verb Tourists and occasional harbor visitors love to watch the sea lions and seals, which often sun themselves on their platform or on the rocks and docks around the harbor. Phil Diehl, San Diego Union-Tribune, "In Oceanside, the sea lions are winning," 2 Dec. 2020 Dark mode now has settings for a user-set schedule or syncing with sundown and sun up. Ron Amadeo, Ars Technica, "Android 11—The Ars Technica Review," 23 Sep. 2020 Litters of young rabbits came out from their forms to sun themselves upon hillocks, the hot beams blazing through the delicate tissue of each thin-fleshed ear, and firing it to a blood-red transparency in which the veins could be seen. Tim Parks, The New York Review of Books, "The Novels of Tension Between Freedom and Disaster," 10 July 2020 On a recent weekday afternoon a couple dozen people had come out to swim and sun on the park’s beaches. al, "Mobile County has big plans for its new waterfront park," 3 July 2020 Working from sun up to sun down—and sometimes through the night—to make ends meet. Toni Carey, SELF, "How I Learned to Stop Glorifying the Hustle and Start Living Intentionally," 22 Oct. 2019 Aside from ordering new swimsuits for sunning in our windowsills or stocking up on cocktail kits for fire-escape happy hours, those of us with access to an outdoor space (or any ol' patch of grass, really) will be investing in the inflatable pool. Elizabeth Buxton, refinery29.com, "The Best Inflatable Pools For Whatever Outdoor Space You’re Workin’ With," 11 May 2020 Nutria often use these as feeding, grooming, loafing, and sunning platforms. Gerry Bethge, Outdoor Life, "Hunting Nutria in the Louisiana Bayou," 21 Apr. 2020 The Mara River runs through the reserve, providing a place for hippos to splash and crocodiles to sun themselves. Peter Terzian, Travel + Leisure, "In Kenya, an Epic Photographic Safari Through Some of Africa's Most Dramatic Landscapes," 18 Apr. 2020

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

Noun

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

Verb

15th century, in the meaning defined at transitive sense

History and Etymology for sun

Noun

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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Statistics for sun

Last Updated

10 Jan 2021

Cite this Entry

“Sun.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sun. Accessed 21 Jan. 2021.

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More Definitions for sun

sun

noun
How to pronounce Sun (audio)

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

sun

verb

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

sun

noun
\ 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

sun

verb
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.

Sunday

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Comments on sun

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