
this body during a particular lunar month, or during a certain period of time, or at a certain point of time, regarded as a distinct object or entity. Compare full moon, half-moon, new moon, waning moon, waxing moon.
a lunar month, or, in general, a month.
any planetary satellite: the moons of Jupiter.
something shaped like an orb or a crescent.
a platyfish.
Slang. the buttocks, especially when bared.
verb (used without object)
Slang. to expose one's buttocks suddenly and publicly as a prank or gesture of disrespect.
verb (used with object)
to illuminate by or align against the moon.
Slang. to expose one's buttocks to as a prank or gesture of disrespect.

before 900; Middle English mone, Old English mōna; cognate with Old High German māno, Old Norse māni, Gothic mena; akin to German Mond moon, Latin mēnsis month, Greek mḗnē moon, Sanskrit māsa moon, month

mooner, noun
moonless, adjective Unabridged
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World English Dictionary
moon (muːn)
2.  the face of the moon as it is seen during its revolution around the earth, esp at one of its phases: new moon; full moon
3.  any natural satellite of a planet
4.  moonlight; moonshine
5.  something resembling a moon
6.  a month, esp a lunar one
7.  once in a blue moon very seldom
8.  informal over the moon extremely happy; ecstatic
9.  reach for the moon to desire or attempt something unattainable or difficult to obtain
vb (when tr, often foll by away; when intr, often foll by around)
11.  slang (intr) to expose one's buttocks to passers-by
Related: lunar
[Old English mōna; compare Old Frisian mōna, Old High German māno]

Moon1 (muːn)

Moon2 (muːn)

Collins English Dictionary - Complete & Unabridged 10th Edition
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Word Origin & History

O.E. mona, from P.Gmc. *mænon- (cf. O.S., O.H.G. mano, O.Fris. mona, O.N. mani, Du. maan, Ger. Mond, Goth. mena "moon"), from PIE *me(n)ses- "moon, month" (cf. Skt. masah "moon, month;" Avestan ma, Pers. mah, Arm. mis "month;" Gk. mene "moon," men "month;" L. mensis "month;" O.C.S. meseci, Lith.
menesis "moon, month;" O.Ir. mi, Welsh mis, Bret. miz "month"), probably from base *me- "to measure," in ref. to the moon's phases as the measure of time. In Gk., Italic, Celtic, Armenian the cognate words now mean only "month." Gk. selene (Lesbian selanna) is from selas "light, brightness (of heavenly bodies)." Extended 1665 to satellites of other planets. To shoot the moon "leave without paying rent" is British slang from c.1823; card-playing sense perhaps infl. by gambler's shoot the works (1922) "go for broke" in shooting dice. The man in the moon is mentioned since c.1310; he carries a bundle of thorn-twigs and is accompanied by a dog. Some Japanese, however, see a rice-cake-making rabbit in the moon.

c.1600, "to expose to moonlight;" later "idle about" (1836), "move listlessly" (1848), probably on notion of being moon struck, which is attested from 1670s; cf. Gk. selenobletos. The meaning "to flash the buttocks" is first recorded 1968, U.S. student slang, from moon (n.) "buttocks" (1756), "probably
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Science Dictionary
moon   (mn)  Pronunciation Key 

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  2. A natural satellite revolving around a planet.

The American Heritage® Science Dictionary
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American Heritage
Cultural Dictionary

moon definition


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 Dictionary

moon definition

  1. n.
    the buttocks. : He rubbed his plump moon where he had been kicked, but said no more.
  2. tv. & in.
    to show (someone) one's nude posterior through a window (usually of an automobile). (See also mooner; gaucho.) : When the plane flew over Cuba, this guy named Victor actually mooned a Russian MIG that flew by.
Copyright 2007. Published by McGraw-Hill Education.
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Bible Dictionary

Moon definition


Easton's 1897 Bible Dictionary
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