noun
moon
moon
noun
1
The natural satellite that orbits the Earth, visible in the night sky.
"A full moon lit up the whole beach."
"Astronauts first landed on the moon in 1969."
2
Any natural satellite orbiting a planet.
"Jupiter has dozens of moons, the largest being Ganymede."
verb
1
(informal) To bare one's buttocks at someone, usually as a joke or insult.
"The students mooned the rival team's bus as it drove past."
2
To spend time in an idle, dreamy, or distracted way, often while thinking about someone.
"He spent the whole afternoon mooning over photos of his ex."
How to Use Moon
Learner’s notesIn plain EnglishEarth's satellite in the sky, or (informally) to show your bare bottom, or to daydream longingly.
Easily confused with
Common pairings
full moon
new moon
moon over someone
to the moon
Word Forms
mooned past tense, moons plural, Moons plural, moons singular
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Etymology
From Old English mona, from an ancient Germanic word for "moon" that shares its root with month — the moon's cycle was one of the earliest ways people measured time.