English pronunciation of “first”

first

uk How to pronounce first ordinal number in British English
us How to pronounce first ordinal number in American English
uk How to pronounce first adverb in British English
us How to pronounce first adverb in American English
uk How to pronounce first noun in British English
us How to pronounce first noun in American English
us How to pronounce first adjective in American English

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