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
December's nearly new moon gives a perfect chance to end the year on a positive note, if skies are clear enough to see what the Ursids may do this time.
—
Joe Rao, Space.com, 14 Dec. 2025
Supermoons happen when a new moon or a full moon is at its closest to Earth all month, according to NASA.
—Julia Gomez, USA Today, 5 Dec. 2025
This Sag new moon says go wide.
—Dossé-Via Trenou, Refinery29, 28 Nov. 2025
Experienced stargazers stake out new moons with cloud-free skies to get the best views, but there’s so much to do and see here from sunrise to sunset, too.
—Sheeka Sanahori, Outside, 11 Nov. 2025
See All Example Sentences for new moon
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Joe Rao, Space.com, 14 Dec. 2025
Supermoons happen when a new moon or a full moon is at its closest to Earth all month, according to NASA.
—Julia Gomez, USA Today, 5 Dec. 2025
This Sag new moon says go wide.
—Dossé-Via Trenou, Refinery29, 28 Nov. 2025
Experienced stargazers stake out new moons with cloud-free skies to get the best views, but there’s so much to do and see here from sunrise to sunset, too.
—Sheeka Sanahori, Outside, 11 Nov. 2025
See All Example Sentences for new moon
Cite this Entry
“New moon.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/new%20moon. Accessed 17 Dec. 2025.
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