Phonetically, as one of the eastern Persian dialects, the Aimaq dialect resembles a formal or classical form of
Persian.
Vowels:
The "majhul" vowels ē / ī and ō / ū are still kept separate, whereas in
western Persian they are merged as ī and ū respectively. For instance, the identically written words شیر 'lion' and 'milk' are in western Persian both pronounced [šīr], but in Aimaq [šēr] for 'lion' and [šīr] for 'milk'. The long vowel in زود 'quick' and زور 'strong' is realized as [ū] in western Persian, in contrast, these words are pronounced as [zūd] and [zōr] respectively by Aimaq speakers.
The
diphthongs of early Classical Persian aw (as ow in Engl. cow) and ay (as i in English ice) have in Aimaq become [ow] (as in Engl. low) and [ej] (as in Engl. day). Dari, on the other hand, is more archaic, e.g. نوروز 'Persian New Year' is realized as [nowrūz] in Iranian, and [nawrōz] in Aimaq, and نخیر 'no' is uttered as [naχejr] in Iranian, and as [naχajr] in Aimaq.
The high short vowels [i] and [u] tend to be lowered in western Persian to [e] and [o].
/æ/[clarification needed] and /e/ are in Aimaq kept separate in word-final positions, unlike western Persian, where /æ/ has [e] as a word-final allophone.
Consonants:
Aimaq still retains the (classical) bilabial pronunciation [w] of the labial consonant و, which is realized as a
voiced labiodental fricative[v] in western Persian. [v] is found in Aimaq as an allophone of f before voiced consonants.