Received Pronunciation (RP) is a form of pronunciation of the English language which has traditionally been the prestige British accent. RP is a form of English English (English English is a term that has been applied to the English language as spoken in England.), sometimes defined as the "educated spoken English of southeastern England." It is often taught to non-native speakers; used as the standard for English in most books on general phonology and phonetics; and represented in the pronunciation schemes of most British dictionaries.
Full vowels:
Full vowels are those that appear in stressed syllables.
Monophthongs
Short
Long
Front
Back
Front
Central
Back
Close
Mid
Open
//: bid
//: good
//: bed (sometimes transcribed /e/)
//: bud
//: bat (sometimes transcribed /a/)
//: pot
//: bead
//: booed
//: bird (sometimes transcribed //)
//: bought, board
//: father, bard
Diphthongs
Closing
Centring
to //
to //
Starting close
Starting mid
Starting open
//: bay
//: boy
//: toe
//: buy (sometimes transcribed /ʌɪ/)
//: cow
//: beer
//: boor (falling out of use in British English; often replaced by /ɔː/)