1
: the moon when half its disk appears illuminated
2
: something shaped like a crescent
3
: the lunule of a fingernail
half-moon
adjective
Examples of half-moon in a Sentence
Recent Examples on the Web
Add a splash of color to your manicure with a half-moon design.
—
Kara Jillian Brown, InStyle, 20 Jan. 2026
New moon skies are dark, especially when compared to nights when the moon is out; even a half-moon (when the moon is at first or last quarter phase) is the second brightest object in the sky after the sun.
—Jesse Emspak, Space.com, 18 Jan. 2026
Slice the cucumbers into half-moons and toss with the apples.
—Gretchen McKay, Twin Cities, 15 Jan. 2026
Ventilation is provided by half-moon vents on each sidewall, as well as openable windows.
—New Atlas, 15 Dec. 2025
See All Example Sentences for half-moon
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Kara Jillian Brown, InStyle, 20 Jan. 2026
New moon skies are dark, especially when compared to nights when the moon is out; even a half-moon (when the moon is at first or last quarter phase) is the second brightest object in the sky after the sun.
—Jesse Emspak, Space.com, 18 Jan. 2026
Slice the cucumbers into half-moons and toss with the apples.
—Gretchen McKay, Twin Cities, 15 Jan. 2026
Ventilation is provided by half-moon vents on each sidewall, as well as openable windows.
—New Atlas, 15 Dec. 2025
See All Example Sentences for half-moon
Cite this Entry
“Half-moon.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/half-moon. Accessed 5 Feb. 2026.
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