wanna casual form of want to, want a BrE AmE ˈwɒn ə AmE \ ˈwɑːn ə ˈwɔːn ə, ˈwʌn ə —not standard in British English; the Received Pronunciation equivalent is ˈwɒnt ə . Before a vowel sound, also -u rather than -ə
WANNA
Meaning of WANNA in English
Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012