Definition of blue moon
1 : a very long period of time —usually used in the phrase once in a blue moon <such people happen along only once in a blue moon — Saturday Review>
2 : a second full moon in a calendar month
Examples of blue moon
<once in a blue moon we'll get dressed up and eat in a fancy restaurant>
First Known Use of blue moon
Rhymes with blue moon
aswoon, attune, baboon, balloon, bassoon, buffoon, Calhoun, Cancún, cardoon, cartoon, cocoon, commune, doubloon, dragoon, festoon, fine-tune, forenoon, full moon, gaboon, gadroon, galloon, Gudrun, half-moon, harpoon, high noon, immune, impugn, jargoon, jejune, Kowloon, Kunlun, lagoon, lampoon, lardoon, Maine coon, maroon, monsoon, Neptune, new moon, oppugn, Pashtun, patroon, platoon, poltroon, pontoon, premune, puccoon, quadroon, ratoon, repugn, rough-hewn, saloon, Sassoon, shalloon, soupspoon, spittoon, spontoon, teaspoon, tribune, triune, tuchun, tycoon, typhoon, untune, Walloon
Learn More about blue moon
Thesaurus: All synonyms and antonyms for "blue moon"
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