English pronunciation of “flat”

flat

uk How to pronounce flat adjective in British English
us How to pronounce flat adjective in American English
uk How to pronounce flat noun in British English
us How to pronounce flat noun in American English
uk How to pronounce flat adverb in British English
us How to pronounce flat adverb in American English

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