名詞 moon:

1. the natural satellite of the Earth
2. any object resembling a moon
3. the period between successive new moons (29.531 days)
   同義詞：lunar month, lunation, synodic month
4. the light of the moon
   同義詞：moonlight, moonshine
5. United States religious leader (born in Korea) who founded the Unification Church in 1954; was found guilty of conspiracy to evade taxes (born in 1920)
   同義詞：Sun Myung Moon
6. any natural satellite of a planet

動詞 moon:

1. have dreamlike musings or fantasies while awake
   同義詞：daydream
2. be idle in a listless or dreamy way
   同義詞：moon around, moon on
3. expose one's buttocks to

1. The moon goes round the earth.
   月亮繞著地球轉(zhuǎn)。
2. The moon waxes and wanes every month.
   月亮每個月都有盈虧。
3. All that happened many moons ago.
   那一切都發(fā)生在很久以前。
4. Last night there was a full moon.
   昨晚是滿月。

moon

n.（名詞）
The natural satellite of Earth, visible by reflection of sunlight and having a slightly elliptical orbit, approximately 35',000 kilometers (22,'00 miles) distant at perigee and 40',997 kilometers (252,950 miles) at apogee. Its mean diameter is 3,475 kilometers (2,'0 miles), its mass approximately one eightieth that of Earth, and its average period of revolution around Earth 29 days 2 hours 44 minutes calculated with respect to the sun.
月亮，月球：地球的天然衛(wèi)星，通過反射太陽光而發(fā)光，并有一個略呈橢圓形的軌道，在近地點(diǎn)時，距離約有35',000公里(22,'00英里），在遠(yuǎn)地點(diǎn)距離約有40',997公里(252,950英里）。它的平均直徑為3,475公里(2,'0英里），它的質(zhì)量約為地球的八十分之一，參照太陽，它圍繞地球旋轉(zhuǎn)的平均周期為29天2小時44分鐘
A natural satellite revolving around a planet.
（行星的）衛(wèi)星：圍繞行星運(yùn)轉(zhuǎn)的天然衛(wèi)星
The moon as it appears at a particular time in its cycle of phases:
朔望月：月亮在某一特定時間就會在天體運(yùn)轉(zhuǎn)軌道相應(yīng)位置出現(xiàn)：
例句：
the full moon; a half moon.
滿月；半月

A month, especially a lunar month.
太陰月：一個月，尤指陰歷的月
A disk, globe, or crescent resembling the natural satellite of Earth.
月狀物，新月狀物：類似地球自然衛(wèi)星的碟、球體或新月狀物
Moonlight.
月光
Slang The bared buttocks.
【俚語】 赤裸的臀部
v.（動詞）
mooned,moon.ing,moons
v.intr.（不及物動詞）
To wander about or pass time languidly and aimlessly.
閑逛：沒精打采地或無目的地閑逛或虛度時間
To yearn or pine as if infatuated.
出神：渴望或向往，仿佛迷戀或醉心于其中
Slang To expose one`s buttocks in public as a prank or disrespectful gesture.
【俚語】 露出屁股以戲弄：在公共場合暴露自己的屁股，作為一種惡作劇或不尊重的表示
v.tr.（及物動詞）
Slang To expose one`s buttocks to (others) as a prank or disrespectful gesture:
【俚語】 露出屁股：對別人露出屁股作為惡作劇或不尊敬的表示：
例句：
.threatened to moon a passing . . . camera crew.(Vanity Fair)
.威脅要對一群路過的照相者露出屁股.(名利場)

來源：
Middle English moone
中古英語 moone
from Old English môna * see mô- 2
源自 古英語 môna *參見 mô- 2