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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Alexis Rodriguez, 44, said his wife and three children, ages 4, 8 and 18, are intubated at the hospital in critical condition.—
Colin Mixson,
New York Daily News,
5 May 2026
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Pastel Classic Clog for ages one through five — the latter swapping multiple Jibbitz for only two oversized shoe charms of Kitty at her finest, instantly recognizable bow and all.—
Stacia Datskovska,
Footwear News,
4 May 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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Despite his physical power and favorable public image, Homelander longs to be taken more seriously by the company and the people.—
Encyclopedia Britannica,
Encyclopedia Britannica,
5 May 2026
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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
Noun
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Atmospheres, especially dense ones, typically form around large planets or moons, including Saturn’s biggest satellite, Titan.—
Ashley Strickland,
CNN Money,
4 May 2026
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Objects that formed from a circumplanetary disk, like Jupiter or Saturn’s large moons, are different than objects that migrate and get gravitationally captured, like Neptune’s large moon, Triton.—
Big Think,
Big Think,
30 Apr. 2026
Cite this Entry
“Blue moons.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/blue%20moons. Accessed 11 May. 2026.
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