the earth's natural satellite, orbiting the earth at a mean distance of 238,857 miles (384,393 km) and having a diameter of 2160 miles (3476 km).

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.

moonlight.

a platyfish.

Slang . the buttocks, esp. when bared.

to act or wander abstractedly or listlessly

You've been mooning about all day.

to sentimentalize or remember nostalgically

He spent the day mooning about his lost love.

to gaze dreamily or sentimentally at something or someone

They sat there mooning into each other's eyes.

Slang . to expose one's buttocks suddenly and publicly as a prank or gesture of disrespect.

to spend (time) idly

to moon the afternoon away.

to illuminate by or align against the moon.

Slang . to expose one's buttocks to as a prank or gesture of disrespect. ?

blue moon

a very long period of time

Such a chance comes once in a blue moon.