Diphthongs

MOUTH

South of Scotland, MOUTH is generally represented by a glide from low front to high back, with an extreme range of [au], taking in onsets from [a] to [ε] and end-points from [ʊ] to [u] and [ʉ]. [aʊ] is the diphthong in RP, and is found in British Creole with [ɔʊ] and [æə]. Scotland has [Λʉ], Shetland has [Λʊ], and Orkney [əʊ], while all three share monophthongal [u(:)] with northernmost Northern England. Also in the North of England, parts of west and south Yorkshire have [a:], while in the South London Cockney exhibits [æ:].