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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Examples of blue moon in a Sentence
Recent Examples on the Web
The next seasonal blue moon is expected in May 2027.
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Rebecca Schneid, TIME, 18 Aug. 2024
So when will the next super blue moon actually occur?
—Doyle Rice, USA TODAY, 17 Aug. 2024
Similar to supermoons, blue moons happen every two to three years.
—Kelsie Gibson, Peoplemag, 16 Aug. 2024
The rare cosmic combination of a supermoon and blue moon peaks at 2:26 p.m. ET Monday.
—Riane Lumer, CNN, 19 Aug. 2024
See all Example Sentences for blue moon 
Rebecca Schneid, TIME, 18 Aug. 2024
So when will the next super blue moon actually occur?
—Doyle Rice, USA TODAY, 17 Aug. 2024
Similar to supermoons, blue moons happen every two to three years.
—Kelsie Gibson, Peoplemag, 16 Aug. 2024
The rare cosmic combination of a supermoon and blue moon peaks at 2:26 p.m. ET Monday.
—Riane Lumer, CNN, 19 Aug. 2024
See all Example Sentences for blue moon
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'blue moon.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
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“Blue moon.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/blue%20moon. Accessed 5 Nov. 2024.
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