new moon
Definition of new moon
1 : the moon's phase when it is in conjunction with the sun so that its dark side is toward the earth; also : the thin crescent moon seen shortly after sunset for a few days after the actual occurrence of the new moon phase
2 : the first day of each Jewish month marked by a special liturgy
Indulge Your Inner Word Nerd
Before 12th Century
First Known Use of new moon
before 12th century
NEW MOON Defined for English Language Learners
new moon
Definition of new moon for English Language Learners
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: the moon when it is completely dark
NEW MOON Defined for Kids
new moon
Definition of new moon for Students
1 : the moon's phase when its dark side is toward the earth
2 : the thin curved outline of the moon seen shortly after sunset for a few days after the new moon
Learn More about new moon
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See words that rhyme with new moon Spanish Central: Translation of new moon Nglish: Translation of new moon for Spanish speakers Britannica.com: Encyclopedia article about new moon
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