as in forever
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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Example Sentences
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Recent Examples of blue moon
Super blue moons can also occur, but don’t be fooled by the name.
—
Callum Sutherland, Time, 6 Oct. 2025
But sometimes, once in a magical blue moon, a star will stray from the norm—and pop up in the most random of places.
—Christian Allaire, Vogue, 18 Sep. 2025
But a blue moon isn’t supposed to last for a year.
—Brett Owens, Forbes.com, 1 Sep. 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
See All Example Sentences for blue moon
Callum Sutherland, Time, 6 Oct. 2025
But sometimes, once in a magical blue moon, a star will stray from the norm—and pop up in the most random of places.
—Christian Allaire, Vogue, 18 Sep. 2025
But a blue moon isn’t supposed to last for a year.
—Brett Owens, Forbes.com, 1 Sep. 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
See All Example Sentences for blue moon
Recent Examples of Synonyms for blue moon
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
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One way to mess with an option team’s Plan A is to not only stick them with third-and-forevers, but to put them in an early hole, making them throw out of desperation.—
Sean Keeler,
The Denver Post,
14 Sep. 2019
Noun
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The protest song longs for history.—
Mitch Therieau,
New Yorker,
7 Feb. 2026
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Before long, the film will shift gears to a third main character, Madame Suman’s daughter-in-law Nat (a steely Davika Hoorne), who recently died of lung disease and longs for her still-living husband March (Witsarut Himmarat).—
Amy Nicholson,
Los Angeles Times,
4 Feb. 2026
Noun
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For families This family-friendly resort offers a Kids For All Seasons program, family movie nights, kite-making activity, and more—plus complimentary kids’ menu meals for children ages five and under.—
Condé Nast,
Condé Nast Traveler,
15 Feb. 2026
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Sensory-inclusive shows offer accommodations for a neurodivergent audience of all ages.—
Alyssa Ramos,
Miami Herald,
14 Feb. 2026
Noun
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The Gaia Earth model has a small moon connected to it representing Meir and bananas represetning mission specialist Sophie Adenot, for example.—
Josh Dinner,
Space.com,
14 Feb. 2026
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Humans often use astrology—the ancient belief that the sun, moon, and planets influence our behaviors and life paths—to explain the unexplainable.—
Elise Taylor,
Vanity Fair,
13 Feb. 2026
Cite this Entry
“Blue moon.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/blue%20moon. Accessed 15 Feb. 2026.
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