Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “new moon”

new moon

noun [C usually singular, U] uk   us  
the moon when it is shaped like a crescent, or a time when it is shaped like this: It was dark now and the sliver of a new moon could be seen overhead. The team discovered that the planet is 0.02°C warmer at full moon than at new moon.Astronomy - general words
(Definition of new moon from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of new moon?
Add Cambridge dictionaries to your browser to your website

Definitions of “new moon” in other dictionaries

Translations of “new moon”

Word of the Day

microbrewery

a small company that makes beer, usually using traditional methods, and often has a restaurant where its beer is served

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More