Varieties of Arabic
There are many varieties of Arabic (also called dialects of Arabic or vernacular languages) in existence. Arabic is a Semitic language within the Afroasiatic family that originated on the Arabian Peninsula. It is classified as a macrolanguage comprising 30 modern varieties, including its standard form. The largest divisions occur between the spoken languages of different regions. Some varieties of Arabic in North Africa, for example, are not easily comprehensible to an Arabic speaker from the Levant or the Persian Gulf. Within these broad regions further and considerable geographic distinctions exist, within countries, across country borders, even between cities and villages.
Arabic phonology
Of all the mainstream varieties of Arabic, Moroccan Arabic is likely the one that has diverged the most from Classical Arabic, similarly to the position of French in the Romance languages and English among the Germanic languages. As described above, Moroccan has heavily innovated in its vowel phonology, under heavy Berber influence. Short vowels and merged into . More recently, most instances of short have also merged into ; the few that remain are mostly in the vicinity of velars and uvulars, which suggests an alternative analysis with phonemically rounded consonants (e.g. labiovelars) and only one short vowel . This schwa, in turn, is phonemically deleted in all contexts except directly followed by a single word-final consonant or in some three-consonant words of the shape "CəCC". This inevitably results in some very long, complex consonant clusters, which (unlike most other Arabic varieties) Moroccan Arabic is remarkably tolerant of, only tending to insert epenthetic schwas to break up the clusters at a slow rate of speech. Unlike in other varieties, doubled consonants are never reduced, but are pronounced clearly whether occurring at the beginning of a word, end of a word, between vowels or before or after a consonant. With the collapse of short vowels, speakers no longer perceive a long vs. short distinction in vowels, which has been replaced with a "full" vs. "reduced/unstable" distinction. "Full" vowels (actually pronounced half-long) substitute for both the long and short vowels of Classical Arabic in borrowings; as a result, these borrowings can be immediately identified by their phonology.