Dictionary
blue moon
noun
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
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First Known Use of BLUE MOON
1821
Related to 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
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