once in a blue moon definition

  • adverb:
    • Very rarely; extremely infrequently.
    • Never.
  • others:
    • extremely rarely; -- from observance the moon rarely has actually a bluish tint.

Related Sources

  • Definition for "once in a blue moon"
    • Very rarely; extremely infrequently.
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  • Sentence for "once in a blue moon"
  • Etymologically Related for "once in a blue moon"
  • Urban Dictionary for "once in a blue moon"
    • doing some thing extremely hardly ever,…
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