words in the BATH set like can't, shan’t, half, calf, rather which are pronounced with /ɑː/ in many Northern English accents as opposed to in Northern American accents. The vowel of cat, trap is normally pronounced rather than the found in traditional Received Pronunciation or General American while , as in the words palm, cart, start, tomato may not be differentiated from by quality, but by length, being pronounced as a longer . The foot–strut split is absent in Northern English, so that, for example, cut and put rhyme and are both pronounced with ; words like love, up, tough, judge, etc. also use this vowel sound. This has led to Northern England being described "Oop North" by some in the south of England. Some words with in RP even have – book is pronounced in some Northern accents (particularly in Lancashire, eastern parts of Merseyside where the Lancashire accent is still prevalent and Greater Manchester), while conservative accents also pronounce look as . The Received Pronunciation phonemes (as in face) and (as in goat) are often pronounced as monophthongs (such as and ), or as older diphthongs (such as and ). However, the quality of these vowels varies considerably across the region, and this is considered a greater indicator of a speaker's social class than the less stigmatised aspects listed above. The most common R sound, when pronounced in Northern England, is the typical English ; however, an is also widespread, particularly following a consonant or between vowels. This tap predominates most fully in the Scouse accent. The North, like most of the South, is largely (and increasingly) non-rhotic, meaning that R is pronounced only before a vowel or between vowels, but not after a vowel (for instance, in words like car, fear, and lurk). However, regions that are rhotic (pronouncing all R sounds) or somewhat rhotic are possible, particularly amongst older speakers: Lancashire, and Greater Manchester areas north of the city of Manchester may residually be rhotic or pre-consonantally rhotic (pronouncing R before a consonant but not in word-final position), for example, in Accrington and Rochdale. Lincolnshire may weakly retain word-final (but not pre-consonantal) rhoticity. Uvular rhoticity, in which the same R sound as in French and German is used, has been described as the traditional "burr" of rural, northern Northumberland—possible as well, though also rare, in County Durham. The vowel in dress, test, pet, etc. is slightly