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Nearby words
blue melilot, blue merle, blue mockingbird, blue mold, blue monday, blue moon, blue mould, blue mountains, blue mud, blue murder, blue myrtle
Origin of blue moon
First recorded in 1815–25
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for blue moon
blue moon
noun
the second full moon occurring within a calendar month
once in a blue moon informal very rarely; almost never
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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