RP


Meaning of RP in English

RP /ˌɑː ˈpiː $ ˌɑːr-/ BrE AmE noun [uncountable]

(Received Pronunciation) the form of British pronunciation that many educated people in Britain use, and that is thought of as the standard form

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.