Definition of haven't in English:
 haven't
contractionˈhav(ə)ntˈhævənt
Have not.
 Example sentencesExamples
-  If you haven't worked out exactly what this film will be like by now, there's no hope for you.
 -  We haven't reached the limits of human performance in sport or in any other field.
 -  Their beaming faces give the impression that they haven't got a care in the world.
 -  Why the men haven't been rolling up their sleeves and doing their bit is not entirely clear.
 -  The band haven't finished the album but they know how I want to finish certain songs.
 
  Definition of haven't in US English:
 haven't
contractionˈhavəntˈhævənt
Have not.
 Example sentencesExamples
-  Why the men haven't been rolling up their sleeves and doing their bit is not entirely clear.
 -  Their beaming faces give the impression that they haven't got a care in the world.
 -  The band haven't finished the album but they know how I want to finish certain songs.
 -  If you haven't worked out exactly what this film will be like by now, there's no hope for you.
 -  We haven't reached the limits of human performance in sport or in any other field.