Main Entry: ¹moon

Pronunciation: \ˈmün\

Function: noun

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

Date: before 12th century

1 a often capitalized : the earth's natural satellite 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 c : satellite 2; specifically : a natural satellite of a planet
2 : an indefinite usually extended period of time <a labor of many moons>
3 : moonlight
4 : something that resembles a moon: as a : a highly translucent spot on old porcelain b : lunule c slang : naked buttocks
5 : something impossible or inaccessible <reach for the moon>

— moon·like \-ˌlīk\ adjective

— over the moon : very pleased : in high spirits