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.
Varieties of Arabic
Language mixes and changes in different ways. Arabic speakers often use more than one variety of Arabic within a conversation or even a sentence. This process is referred to as code-switching. For example, a woman on a TV program could appeal to the authority of the formal language by using elements of it in her speech in order to prevent other speakers from cutting her off. Another process at work is "leveling", the "elimination of very localised dialectical features in favour of more regionally general ones." This can affect all linguistic levels—semantic, syntactic, phonological, etc. The change can be temporary, as when a group of speakers with substantially different Arabics communicate, or it can be permanent, as often happens when people from the countryside move to the city and adopt the more prestigious urban dialect, possibly over a couple of generations.