Dictionary

new moon

noun

: the moon when it is completely dark

Full 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
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First Known Use of NEW MOON

before 12th century
NEW MOON Defined for Kids

new moon

noun

Definition of NEW MOON for Kids

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

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