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
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
Janet Loehrke, USA Today, 21 Aug. 2025
Recent Examples of Synonyms for blue moons
Noun
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Eighteen other people, 15 of them students ages 6-18 and three parishioners in their 80s, were struck by gunfire, authorities said.—
Detroit Free Press,
Freep.com,
28 Sep. 2025
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Other families approached the conversation differently, tailoring explanations to their children’s ages and experiences.—
Daniella Gray,
MSNBC Newsweek,
28 Sep. 2025
Noun
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One longs to see a full scene of Candy in action onscreen or in a home video, rather than just snippets.—
Beandrea July,
IndieWire,
5 Sep. 2025
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This tells you that the profit-takers aren’t being super-aggressive and that the longs are staying put.—
Josh Brown,Sean Russo,
CNBC,
28 Aug. 2025
Cite this Entry
“Blue moons.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/blue%20moons. Accessed 1 Oct. 2025.
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