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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Tickets cost $28 for adults and $20 for children ages 3-12, with discounts available for military members and adults ages 65 and up.—
Kansas City Star,
Kansas City Star,
8 Nov. 2025
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Fisher-Price 4-in-1 Activity Table Foster your little one’s motor skills with this activity table that allows babies ages 6 months and up to flip, slide, roll, spin, and press the buttons, wheels, and lights.—
Mia Huelsbeck,
PEOPLE,
8 Nov. 2025
Noun
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The Thing builds tension based on the premise that anyone, even your closest friend or partner, could be othered, transformed into a being that longs for your destruction.—
Alan Bradley,
Space.com,
8 Nov. 2025
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On the surface, Trump longs for grandeur.—
Michelle Goldberg,
Mercury News,
23 Oct. 2025
Noun
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The fourth largest of Jupiter’s 95 moons, Europa is an icy celestial body that scientists have long suspected could harbor the conditions necessary to support life beneath its surface.—
Eric Lagatta,
USA Today,
8 Jan. 2026
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Besides its prominent cloud belts, Jupiter's greatest telescopic treasure are its four Galilean moons that run a merry race with each other around the planet, changing their respective positions from hour to hour and night to night.—
Joe Rao,
Space.com,
7 Jan. 2026
Cite this Entry
“Blue moons.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/blue%20moons. Accessed 11 Jan. 2026.
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