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Definitions

once in a blue moon

[wuhns in uh bloo moon] / ˈwʌns ɪn ə ˈblu ˈmun /










Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

As it only happens every few years it is where the expression 'once in a blue moon' comes from.

From BBC

As it only happens once every few years, it is where we get the expression 'once in a blue Moon' from.

From BBC

“Once in a blue moon,” the frame reads.

From The Wall Street Journal

Once in a blue moon, a person is willing to do the hard internal work that leads to real, sustainable change.

From Salon

Every once in a blue moon, our youngest daughter Amma has a Sunday soccer game; in that case, you’ll find me on the sidelines at her game.

From Los Angeles Times