moon

noun
\ ˈmün \

Definition of moon

 (Entry 1 of 2)

1a often capitalized : the earth's natural satellite (see satellite sense 2a) that shines by the sun's reflected light, revolves about the earth from west to east in about 29¹/₂ days with reference to the sun or about 27¹/₃ days with reference to the stars, and has a diameter of 2160 miles (3475 kilometers), a mean distance from the earth of about 238,900 miles (384,400 kilometers), and a mass about one eightieth that of the earth usually used with the
b : one complete moon cycle consisting of four phases (see phase entry 1 sense 1)
c : satellite sense 2 specifically : a natural satellite of a planet the moons of Jupiter
2 : an indefinite usually extended period of time a labor of many moons
3 : moonlight keep out of the moon or it may turn your head— H. R. Haggard
4 : something that resembles a moon: such as
a : a highly translucent (see translucent sense 1) spot on old porcelain
b : lunule
c slang : naked buttocks
5 : something impossible or inaccessible reach for the moon
over the moon
: very pleased : in high spirits

moon

verb
mooned; mooning; moons

Definition of moon (Entry 2 of 2)

transitive verb

1 : to spend in idle reverie : dream used with away mooned the afternoon away
2 slang : to expose one's naked buttocks to One of the boys mooned the crowd.

intransitive verb

: to spend time in idle reverie : behave abstractedly fans mooning over movie stars

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Other Words from moon

Noun

moonlike \ -​ˌlīk \ adjective

Synonyms for moon

Synonyms: Noun

aeon (or eon), age, blue moon, coon's age, cycle, donkey's years [chiefly British], eternity, forever, long, months

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Examples of moon in a Sentence

Noun

The telescope makes the craters on the surface of the moon incredibly clear. the orbit of the Moon around the Earth Europa and Io are both moons of Jupiter. a planet orbited by one moon

Verb

One of the boys mooned the crowd. One of the boys mooned at the crowd.
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Recent Examples on the Web: Noun

The married couple Instagrammed from their mini-moon. Marilyn La Jeunesse, Teen Vogue, "Nick Jonas and Priyanka Chopra's Best Moments of 2018," 27 Dec. 2018 The researchers found sublimation to be the dominant factor on equatorial Europa, the regions within 23 degrees of the moon's equator. Mike Wall, Space.com, "Jupiter Moon Europa's Jagged Ice Towers Could Imperil Robot Landers," 8 Oct. 2018 The spacecraft, which has spent 13 years exploring the Saturn system, has generated a trove of scientific data on Saturn and its moons. Chris Ciaccia, Fox News, "Alien life on Saturn's moon? Dust storms on Titan spotted for the first time," 25 Sep. 2018 The other two countries to land spacecraft on the moon are the Soviet Union in September 1959 and China in December 2013. Alex Stuckey, Houston Chronicle, "NASA Administrator Jim Bridenstine wants to boost collaboration with Israel," 13 July 2018 But the isotope is so abundant on the moon its waste-free nuclear power could meet global energy demand for the next 250 years. Kathleen Hunter, Bloomberg.com, "Travel Ban Win Could Embolden Trump on Border," 27 June 2018 The shallow arc of the June full moon means moonlight must travel through more of the Earth's atmosphere which filters out all of the colors of the moon's spectrum except oranges and yellows. Meg Jones, Milwaukee Journal Sentinel, "Look up! Strawberry Moon is most colorful full moon all year," 25 June 2018 The month of July should bring Saturn and its rings — the most extensive ring system of any planet in the entire solar system — into view while Mars and its moons come into play late July and August, Nichols said. Vickie Snow Jurkowski, Daily Southtown, "Adler Planetarium bringing telescopes to a library, park or taproom near you this summer," 20 June 2018 To recreate, say, the watermelon design, cover the tips of your nails with tape (any kind of tape will do), leaving just your half-moons exposed. Chloe Metzger, Marie Claire, "7 Ridiculously Cool Nail Designs to Copy this Summer," 5 June 2018

Recent Examples on the Web: Verb

Then later, upon being released on bail, the man bizarrely dropped his pants and mooned photographers outside the court building. Fox News, "Man late for Ryanair flight arrested for chasing down plane on Dublin Airport tarmac," 28 Sep. 2018 The whole reason for mooning a group text in the first place. Madeline Buxton, refinery29.com, "Dear Apple, You Forgot Some Very Important "Do Not Disturb" Settings," 6 June 2018 She and Tom Arnold had mooned the crowd at a World Series game to show off their matching tattoos. Kate Stanhope, latimes.com, "Rocky road: Roseanne Barr's rollercoaster Hollywood ride," 10 Apr. 2018 These days any rocketeer wishing to get staggeringly pie-eyed and maybe moon the Moon will have to hitch a ride with another space agency altogether. David Arky, Smithsonian, "How Do You Make Beer in Space?," 20 Mar. 2018 Who can forget Ilie Nastase pulling down his pants and mooning the chair umpire Charles Hare in Palm Springs in 1976? Cindy Shmerler, New York Times, "Tennis Moves Toward Taking the Human Element Out of Line Calls," 1 Mar. 2018 The old Birmingham guard repaid the favor by using the worlds' largest cast iron statue to perpetually moon the little town that preferred seeking its own stars. Birmingham Magazine, AL.com, "A History of Homewood," 19 Feb. 2018 Until Sunday the biggest threat was guests occasionally mooning or flashing partygoers, says DJ cb shaw, who was a resident DJ at Rehab for six years. Alexei Barrionuevo, Billboard, "Dance Music Industry Says Pool Parties Could Be Vulnerable Following Las Vegas Shooting," 5 Oct. 2017 Having washed up on the Illyrian shore as a stranger in a strange land, Viola has been dispatched to sing the love of her new employer: the lovesick Duke Orsino (Demetrios E. Troy), mooning over Countess Olivia (Deborah Staples). Mike Fischer, Milwaukee Journal Sentinel, "Elyse Edelman brings new dimension to Door Shakespeare's 'Twelfth Night'," 17 July 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'moon.' 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 moon

Noun

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

Verb

1836, in the meaning defined at transitive sense 1

History and Etymology for moon

Noun and Verb

Middle English mone, from Old English mōna; akin to Old High German māno moon, Latin mensis month, Greek mēn month, mēnē moon

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Dictionary Entries near moon

mooley

moolings

moolvee

moon

moon's man

moon after

moonal

Statistics for moon

Last Updated

15 Jan 2019

Look-up Popularity

Time Traveler for moon

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

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More Definitions for moon

moon

noun

English Language Learners Definition of moon

 (Entry 1 of 2)

the moon : the large round object that circles the Earth and that shines at night by reflecting light from the sun

: a large round object like the moon that circles around a planet other than the Earth

moon

verb

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

: to bend over and show your bare buttocks to someone as a rude joke or insult

moon

noun
\ ˈmün \

Kids Definition of moon

 (Entry 1 of 2)

1 : the natural heavenly body that shines by reflecting light from the sun and revolves about the earth in about 29¹/₂ days

moon

verb
mooned; mooning

Kids Definition of moon (Entry 2 of 2)

moon

noun
\ ˈmün \

Medical Definition of moon

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More from Merriam-Webster on moon

Thesaurus: All synonyms and antonyms for moon

Spanish Central: Translation of moon

Nglish: Translation of moon for Spanish Speakers

Britannica English: Translation of moon for Arabic Speakers

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