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
May 2027 and December 2028 will also bring blue moons, according to RMG.
—
Mariyam Muhammad, USA Today, 30 Apr. 2026
Super blue moons can also occur, but don’t be fooled by the name.
—Callum Sutherland, Time, 6 Oct. 2025
Mariyam Muhammad, USA Today, 30 Apr. 2026
Super blue moons can also occur, but don’t be fooled by the name.
—Callum Sutherland, Time, 6 Oct. 2025
Recent Examples of Synonyms for blue moons
Noun
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This trusty appetizer with layers of flavorful Gouda cheese and ham and a sprinkle of everything bagel seasoning is one all ages will love.—
Kaitlyn Yarborough,
Southern Living,
11 May 2026
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The quirky, all-ages murder mystery features a starry ensemble including Hugh Jackman, Emma Thompson and Nicholas Braun, as well as the voices of Julia Louis-Dreyfus, Bryan Cranston, Regina Hall and Patrick Stewart as the sheep who try to figure out who murdered their shepherd.—
Lindsey Bahr,
Fortune,
11 May 2026
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
Noun
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Now, decades later, Maple longs to provide a good life for her son.—
Ishani Desai,
Sacbee.com,
10 May 2026
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Despite his physical power and favorable public image, Homelander longs to be taken more seriously by the company and the people.—
Encyclopedia Britannica,
Encyclopedia Britannica,
5 May 2026
Noun
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In what is considered one of the greatest works in the history of European literature, Dante and Virgil travel to the Underworld, where they are taken across the River Styx to Hell by the ferryman Charon — in fact, two of Pluto's moons, Charon and Styx, are named after these details.—
Keith Cooper,
Space.com,
11 May 2026
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That idea could finally explain why Ganymede still has an active magnetic field even though most moons lost theirs billions of years ago.—
Rupendra Brahambhatt,
Interesting Engineering,
10 May 2026
Cite this Entry
“Blue moons.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/blue%20moons. Accessed 17 May. 2026.
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