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English definition of “moon”

moon

noun [C/U]  /mun/ us  

moon noun [C/U] (OBJECT IN SPACE)

the object, similar to a planet, that moves through the sky, circling the earth once every 28 days, and which can often be seen clearly at night when it shines with the light coming from the sun: [U] the full moon A moon is also a similar object that moves around another planet: [C] Jupiter has at least sixteen moons.

moon

verb [I always + adv/prep]  /mun/ infml us  

moon verb [I always + adv/prep] (LACK PURPOSE)

to move or spend time in a way that shows a lack of care and interest and no clear purpose: She’s been mooning around the house all weekend.
(Definition of moon from the Cambridge Academic Content Dictionary © Cambridge University Press)
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