■ noun
1》 (also Moon ) the natural satellite of the earth, visible (chiefly at night) by reflected light from the sun.
↘a natural satellite of any planet.
2》 literary or humorous a month: many ~s ago.
■ verb
1》 behave or move in a listless or dreamy manner.
2》 informal expose one's buttocks to someone as an insult or in fun.
Phrases
over the ~ informal delighted.
Derivatives
~less adjective
~let noun
~like adjective
Origin
OE mōna , of Gmc origin; related to month .