new moon

noun

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 beginning of each Jewish month marked by a special liturgy

Examples of new moon in a Sentence

Recent Examples on the Web

Then, a dutiful new moon in Virgo arrives on Aug. 23, igniting your ninth house of expansion and self-discovery, pushing you to explore new horizons. —Valerie Mesa, People.com, 1 Aug. 2025

Today’s new moon in Leo asks you to trust the creative process. —Usa Today, USA Today, 24 July 2025

The combination of lunar perigee on July 20th and a new moon on July 24th. —Anna Skinner, MSNBC Newsweek, 22 July 2025

What if this new moon is the reset button your soul has been whispering for? —Dossé-Via Trenou, Refinery29, 20 July 2025

Word History

First Known Use

before the 12th century, in the meaning defined at sense 1

Rhymes for new moon

• attune
• baboon
• balloon
• bassoon
• buffoon
• cartoon
• cocoon
• festoon
• gaboon
• harpoon
• immune
• impugn

Kids Definition

new moon

noun

: the moon's phase when its dark side is toward the earth

also : the thin curved outline of the moon seen shortly after sunset for a few days after the actual occurrence of the new moon phase