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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Recent Examples of blue moon
Tuesday's supermoon will mark the second of four consecutive supermoons, the next being Thursday, Oct. 17:
Aug. 19: super blue moon
Sept. 17: supermoon, harvest moon and partial lunar eclipse
Oct. 17: supermoon
Nov. 15: supermoon
More:Missed the rare super blue moon?
—
Alexis Simmerman, Austin American-Statesman, 16 Sep. 2024
Tuesday’s moon followed the Aug. 19 super blue moon.
—Jaweed Kaleem, Los Angeles Times, 17 Sep. 2024
About 25% of all full moons are supermoons, while only 3% of full moons are considered blue moons.
—John Tufts, The Courier-Journal, 17 Sep. 2024
About 25% of all full moons are supermoons, while only 3% of full moons are considered blue moons.
—John Tufts, The Indianapolis Star, 13 Sep. 2024
See All Example Sentences for blue moon
Alexis Simmerman, Austin American-Statesman, 16 Sep. 2024
Tuesday’s moon followed the Aug. 19 super blue moon.
—Jaweed Kaleem, Los Angeles Times, 17 Sep. 2024
About 25% of all full moons are supermoons, while only 3% of full moons are considered blue moons.
—John Tufts, The Courier-Journal, 17 Sep. 2024
About 25% of all full moons are supermoons, while only 3% of full moons are considered blue moons.
—John Tufts, The Indianapolis Star, 13 Sep. 2024
See All Example Sentences for blue moon
Recent Examples of Synonyms for blue moon
Noun
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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
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Printed with thermochromic ink, the stamp reveals a second image of the moon when a finger is pressed to it, and a sheet of 16 Forever stamps features a map of the eclipse path.—
Meg Jones,
Milwaukee Journal Sentinel,
18 Aug. 2017
Noun
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One longs for the sinewy action of a Transformers flick, or the imaginative gravity of something like the first Pacific Rim.—
Bilge Ebiri,
Vulture,
14 Mar. 2025
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After having a portrait done by the talented painter Basil, Dorian longs for the picture to age and wither instead of him.—
CT Jones,
Rolling Stone,
21 May 2025
Noun
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Instead, the June moon marks the ripening of early summer fruit such as strawberries, the Almanac said.—
Hannah Poukish,
Sacbee.com,
6 June 2025
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Contracts include a $255 million deal to launch NASA's Roman Space Telescope on a Falcon Heavy in 2026, a $178 million launch contract for NASA's Europa Clipper on Falcon Heavy, and a $256.6 million contract to launch the Dragonfly rotorcraft mission to Saturn's moon Titan, among others.—
Mandy Taheri,
MSNBC Newsweek,
6 June 2025
Noun
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Both found fame in the music industry at a young age, and had to endure their own pressures that came with fame.—
Dave Quinn,
People.com,
4 June 2025
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Twelve people ages 52 to 88 suffered burns ranging from serious to minor, police said.—
John Bacon,
USA Today,
4 June 2025
Cite this Entry
“Blue moon.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/blue%20moon. Accessed 9 Jun. 2025.
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