Definition of ’cause in US English:

’cause

conjunction

informal
  • short for because
    • ‘‘We might have to get rough with 'em,’ Stewart replies, ‘'cause they're getting really chatty.’’
    • ‘He was going to kill himself, ‘'cause I thought I just killed my mother.‘’
    • ‘You'll be the first one gone,’ Brad responds, ‘'cause we'll all immediately gang up on you.’’
    • ‘‘Hang on,’ I say to him, ‘'cause we're gonna catch some air!’’
    • ‘‘Don't call me Bush! ‘he hollers, ‘'cause I'll sue you for this car!‘’

Pronunciation

’cause

/kəz/