Definition of kay in US English:

kay

exclamation

informal
  • ‘come back home sometime, kay?’
    nonstandard spelling of OK, representing a pronunciation
    • ‘Then someone makes the catch and it's all kay.’
    • ‘Let's not celebrate too much, kay Dina?’
    • ‘Just make sure your costume isn't offensive, kay?’
    • ‘I really dislike going to the gym, kay?’
    • ‘No, she doesn't get a say, this is just a deal between you and me, kay?’

Pronunciation

kay

/kā//keɪ/