once in a blue moon Meaning in the Cambridge English Dictionary Cambridge dictionaries logo
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Meaning of “once in a blue moon” in the English Dictionary

"once in a blue moon" in British English

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once in a blue moon

not very often: My sister lives in Alaska, so I only see her once in a blue moon.
(Definition of once in a blue moon from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"once in a blue moon" in American English

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once in a blue moon

rarely: Once in a blue moon he’d call, but for months at a time we heard nothing.
(Definition of once in a blue moon from the Cambridge Academic Content Dictionary © Cambridge University Press)
Translations of “once in a blue moon”
in Chinese (Simplified) 少有地…
in Turkish ayda yılda bir, kırk yılda bir, (argo) ölme eşeğim ölme…
in Russian раз в год по обещанию, очень редко…
in Chinese (Traditional) 少有地…
in Polish raz na ruski rok…
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