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
As mentioned above, many spoken dialects have a process of "emphasis spreading", where the "emphasis" (pharyngealization) of emphatic consonants spreads forward and back through adjacent syllables, pharyngealizing all nearby consonants and triggering the back allophone in all nearby low vowels. The extent of emphasis spreading varies. For example, in Moroccan Arabic, it spreads as far as the first full vowel (i.e. sound derived from a long vowel or diphthong) on either side; in many Levantine dialects, it spreads indefinitely, but is blocked by any or ; while in Egyptian Arabic, it usually spreads throughout the entire word, including prefixes and suffixes. In Moroccan Arabic, also have emphatic allophones and , respectively.