moon
A1Pronunciation
UK
- /mˈuːn/
US
- /ˈmun/
Description
- Earth's natural satellite
- bright object in the night sky
- symbol of night and romance
- round or curved shape
The moon is the natural object that moves around Earth and shines in the night sky by reflecting light from the sun. People usually use the word for the body itself, for its changing shapes during the month, and for the soft light and feeling that people connect with night. In everyday English, it can also appear in phrases such as "over the moon" for being very happy and "honeymoon" for a trip or special time after a wedding.
It also shows up in stories, poems, and songs, where it often suggests calm, beauty, mystery, or change. Sometimes the word is used for something that looks round or curved like it, especially a crescent shape.
The moon is Earth's natural satellite, the large body that travels around our planet and appears bright in the night sky. It does not make its own light; instead, we see sunlight reflected from its surface. As it moves around Earth, the part we can see lit up seems to change, giving us phases such as the new moon, crescent moon, half moon, and full moon.
In normal use, the word often refers simply to the object in the sky, but it also carries a strong feeling. It appears in writing and speech as a sign of night, quiet beauty, romance, and mystery. That is why it is common in songs, poems, myths, and stories. The word is also part of fixed expressions. If someone is "over the moon," they are extremely happy. A "honeymoon" is the trip or early period of married life after a wedding.
The word can sometimes describe shape as well, especially something round or curved like a crescent. Beyond everyday language, the moon is important in science and history because it affects the tides and has been a subject of human study and exploration for centuries. So the word joins plain physical meaning with deep cultural feeling: it names a real object in space, but it also brings to mind emotion, wonder, and the rhythm of time.
Examples
- 1
Night sky
The moon was already high when we got home.
- 2
Full moon
We planned the hike for the night of the full moon.
- 3
Crescent moon
A thin crescent moon hung over the rooftops.
- 4
Astronomy
Earth has one moon, but Saturn has many.
- 5
Happiness idiom
She was over the moon when she got the job.
Phrase
over the moon
extremely happy
- 6
Rare contact
I see my old classmates once in a blue moon now.
Phrase
once in a blue moon
very rarely
- 7
Unrealistic promises
The ad promised the moon, but the product was disappointing.
Phrase
promise the moon
promise more than is realistic
Forms and spellings
4 forms open this card.
Main spelling
- moonnounverb
Forms
- moonspluralnounverb
- mooning-ing formverbnoun
- moonedpast tenseverbnoun