Children's, Intermediate and Advanced Online English Dictionary & Thesaurus

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O1

O1

 
pronunciation:
o
part of speech: interjection
definition 1: in poetry, prayer, or solemn address, used before the name of the person or thing being spoken to.
Have mercy, O God.
definition 2: used to express distress, surprise, or the like.
O dear, I'm late for the bus!