Definition of haven't in English:

haven't

Syllabification: have·n't
Pronunciation: /ˈhavənt
 
/

contraction

Have not.
More example sentences
  • 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.
  • The band haven't finished the album but they know how I want to finish certain songs.

Definition of haven't in:

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Word of the day demoralize
Pronunciation: dɪˈmɒrəlʌɪz
verb
cause (someone) to lose confidence or hope