Arabic phonology

While many languages have numerous dialects that differ in phonology, the contemporary spoken Arabic language is more properly described as a continuum of varieties. This article deals primarily with Modern Standard Arabic (MSA), which is the standard variety shared by educated speakers throughout Arabic-speaking regions. MSA is used in writing in formal print media and orally in newscasts, speeches and formal declarations of numerous types.

Modern Standard Arabic has 28 consonant phonemes and 6 vowel phonemes. Al phonemes contrast between "emphatic" (uvularized) consonants and non-emphatic ones. Some of these phonemes have coalesced in the various modern dialects, while new phonemes have been introduced through borrowing or phonemic splits. A "phonemic quality of length" applies to consonants as well as vowels.

Modern Standard Arabic only has six vowel phonemes, or three pairs of corresponding short and long vowels. It has two diphthongs (formed by a combination of short /a/ with the semivowels /j/ and /w/) in classic Arabic with no allophones. Allophony in different dialects of Arabic can occur, and is partially conditioned by neighboring consonants within the same word. As a general rule, for example, /a/ and /aː/ are:

However, the actual rules governing vowel-retraction are a good deal more complex, and have relatively little in the way of an agreed-upon standard, as there are often competing notions of what constitutes a "prestige" form. Often, even highly proficient speakers will import the vowel-retraction rules from their native dialects. Thus, for example, in the Arabic of someone from Cairo emphatic consonants will affect every vowel between word boundaries, whereas certain Saudi speakers exhibit emphasis only on the vowels adjacent to an emphatic consonant. Certain speakers (most notably Levantine speakers) exhibit a degree of asymmetry in leftward vs. rightward spread of vowel-retraction.

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