English pronunciation of “boo”

boo

uk How to pronounce boo verb in British English
us How to pronounce boo verb in American English
uk How to pronounce boo noun in British English
us How to pronounce boo noun in American English
uk How to pronounce boo exclamation in British English
us How to pronounce boo exclamation in American English

(English pronunciations of “boo” from the Cambridge Advanced Learner’s Dictionary & Thesaurus and from the Cambridge Academic Content Dictionary, both sources © Cambridge University Press)