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Once in a blue moon

[wʌns ɪn ə bluː muːn]

phrase

LanguageEnglish (United Kingdom)

Meaning
  1. Happening very rarely

Pronunciationwʌns ɪn ə bluː muːn

How it is usedUse to describe an event that almost never happens.

Status: AI-checked — awaiting native speaker review

This entry was checked automatically. A native speaker has not reviewed it yet. Native speakers can verify or correct it in the LanguageKnow app.