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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Miami trailed 1-0 fast, in the sixth minute, when the defense left Guilherme Biro unmarked for a downward header off a corner kick, gifting Biro the forever-history of the first goal in the new stadium.—
Miami Herald,
Miami Herald,
5 Apr. 2026
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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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The Swiss research team started the electrical powering of the 312-foot-long (95-metre-long) test stand known as the Inner Triplet String (IT String) on April 20.—
Georgina Jedikovska,
Interesting Engineering,
24 Apr. 2026
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Kaia Gerber has officially become the latest in a long of line of celebrities to co-sign the peek-a-bra trend.—
Emma Banks,
InStyle,
9 Apr. 2026
Noun
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Has the state of the world, your age, anything sort of changed your motivation toward the game?—
Charles Bethea,
New Yorker,
26 Apr. 2026
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Positive Results Center empowers healing journeys, helping people of all ages discover their dreams and potential.—
Staff Photographer,
Los Angeles Times,
26 Apr. 2026
Noun
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Both the European Space Agency’s ExoMars Rosalind Franklin rover, which will land on the red planet to explore a different region by the decade’s end, and NASA’s Dragonfly mission to study Saturn’s moon Titan, will carry wet chemistry experiments on board.—
Ashley Strickland,
CNN Money,
24 Apr. 2026
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Along the way, masterpieces are made, gloves are bedazzled, moons are walked.—
Spencer Kornhaber,
The Atlantic,
24 Apr. 2026
Cite this Entry
“Blue moon.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/blue%20moon. Accessed 28 Apr. 2026.
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