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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Schedule your Milky Way pursuits for around five nights before and after a new moon to avoid lunar light. Stephanie Vermillion, Outside Online, 3 July 2025 The Milky Way appears as a faint band of light across the sky and is best viewed during a new moon. Diana Leyva, The Tennessean, 2 July 2025 There will also be a new moon in your fiery territory on July 24, invigorating you with a surge of energy and enthusiasm, perfect for launching a personal project and setting intentions for the future. Valerie Mesa, People.com, 1 July 2025 When Leo Season hits on July 22nd and the Leo new moon follows on the 24th, your attention turns to home and your emotional foundation. Dossé-Via Trenou, Refinery29, 30 June 2025 See All Example Sentences for new moon

Word History

First Known Use

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

Time Traveler
The first known use of new moon was before the 12th century

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Cite this Entry

“New moon.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/new%20moon. Accessed 20 Jul. 2025.

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

More from Merriam-Webster on new moon

Last Updated: - Updated example sentences
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