• An utterance of oh; a spoken expression of surprise, acknowledgement, etc.
  • the letter O, o (more commonly spelled o)
  • the digit 0 (especially in representations of speech)


  • To utter the interjection oh; to express surprise, etc.


  • From Middle English o, oo, oa.
  • From Middle English o, oo, from Old English ō, from Latin ō.
  • From o.

Modern English dictionary

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