Definition of "ow"

ow

/ˈaʊ/

interjection
1. Synonym of ouch (“cry of pain”)
2. (music) Used for emotional emphasis.
  Quotations
  Now don't you wait or hesitate / Let's move before they raise the parking rate, ow!
  1970, Free (lyrics and music), “All Right Now”
  Then you ran into the bedroom / You were struck down / It was your doom, Annie / Ow!
  1987, Michael Jackson (lyrics and music), “Smooth Criminal”