Boston accent
On the other hand, the Boston accent merges the "short "o"" with the "aw" phoneme: the two classes exemplified by "caught" and "cot" thus both become an often long and rounded , so that "caught", "cot", "law", "wand", "rock", "talk", "doll", and "wall" all are pronounced with the same vowel. By contrast, New York accents and southern New England accents have for "caught" and for "cot" and the London accents have and , respectively. In Boston and some other parts of New England, a few words ending in , e.g., "hot" and "got", can be pronounced with an entirely different phoneme, however, sounding instead like "hut" and "gut", respectively.
Received Pronunciation
Received Pronunciation (RP) is an accent of Standard English in the United Kingdom and is defined in the "Concise Oxford English Dictionary" as "the standard accent of English as spoken in the south of England", although it can be heard from native speakers throughout England and Wales. Peter Trudgill estimated in 1974 that 3 per cent of people in Britain were RP speakers, but this rough estimate has been questioned by the phonetician J. Windsor Lewis. Clive Upton notes higher estimates of 5% (Romaine, 2000) and 10% (Wells, 1982) but refers to all these as "guestimates" that are not based on robust research.