new moon
Americannoun
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the moon either when in conjunction with the sun or soon after, being either invisible or visible only as a slender crescent.
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the phase of the moon at this time.
noun
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the moon when it appears as a narrow waxing crescent
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the time at which this occurs
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astronomy one of the four principal phases of the moon, occurring when it lies between the earth and the sun
Etymology
Origin of new moon
before 1000; Middle English; Old English
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
With the event coinciding with a new moon for the first time since 2018, you just need to find a dark spot away from city lights and enjoy the display.
From The Wall Street Journal • Mar. 27, 2026
Millions of people across Asia and the world are welcoming the Lunar New Year which coincides with the first new moon of the lunar calendar.
From BBC • Jan. 29, 2025
To find out, the group systematically observed the worms' daily activities when there was a new moon.
From Science Daily • Apr. 15, 2024
The solar eclipse that occurred in the early afternoon Monday happened to coincide with the second new moon of Ramadan in California.
From Los Angeles Times • Apr. 9, 2024
He’d not kept track of time as meticulously as Brickbane, who’d scored every new moon with a notch in his walking stick.
From "The Undead Fox of Deadwood Forest" by Aubrey Hartman
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
