There are 2 definitions of ow in English:

ow1

Line breaks: ow

exclamation

Used to express sudden pain: Ow! You’re hurting me!
More example sentences
  • ‘OW! Let me go!’ you tell him. He doesn't listen to you.
  • Kevin gasped as the pain once again shot through his back, ‘Ow!’

Origin

natural exclamation: first recorded in English in the mid 19th century.

Definition of ow in:

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Word of the day internecine
Pronunciation: ˌɪntəˈniːsʌɪn
adjective
destructive to both sides in a conflict

There are 2 definitions of ow in English:

OW2

Syllabification: OW

Entry from US English dictionary

abbreviation

Old Welsh.

Definition of ow in: