English pronunciation of “fifteenth”

fifteenth

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

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