as in months
a long or seemingly long period of time
once in a blue moon we'll get dressed up and eat in a fancy restaurant
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Recent Examples of blue moons
Super blue moons can also occur, but don’t be fooled by the name.
—
Callum Sutherland, Time, 6 Oct. 2025
Black moons are referenced like blue moons, which are defined as the third full moon in an astronomical season containing four full moons.
—Janet Loehrke, USA Today, 21 Aug. 2025
Callum Sutherland, Time, 6 Oct. 2025
Black moons are referenced like blue moons, which are defined as the third full moon in an astronomical season containing four full moons.
—Janet Loehrke, USA Today, 21 Aug. 2025
Recent Examples of Synonyms for blue moons
Noun
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Founded in 1990 by Lord Immanuel Jakobovits, the former Chief Rabbi of the British Commonwealth, the school serves roughly 360 pupils ages 10-18.—
Grace Gilson,
Sun Sentinel,
20 Apr. 2026
-
The teams are the best from Performance Cheer divisions ages 15 to 18 and show off their precision, artistry and athleticism.—
Eric Sondheimer,
Los Angeles Times,
20 Apr. 2026
Noun
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Those tush-pushes can’t beat you if The Winter Soldier’s facing third-and-forevers.—
Joe Nguyen,
Denver Post,
17 Jan. 2026
Noun
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We were deprived of what every human longs for—a chance to love honestly with mind, body and soul.—
Donna Lamb,
MSNBC Newsweek,
31 Mar. 2026
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Donica, across from her, is on sturdier ground, fearsome to the point of awe-inspiring in the sustained fury of his fermatas, though his considerable force as a performer longs to be shaped more cleanly.—
Jackson McHenry,
Vulture,
19 Mar. 2026
Noun
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All the solar system's large moons are tidally locked with their planets.—
Ray Petelin,
CBS News,
18 Apr. 2026
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All that persists where the disks once were are the surviving planets and moons, plus any asteroids and icy objects, often found in belts and clouds, that remain.—
Big Think,
Big Think,
17 Apr. 2026
Cite this Entry
“Blue moons.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/blue%20moons. Accessed 24 Apr. 2026.
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