Arabic is same language. But there are different dialects. Like Liverpool english, highpoch, RP, amrican English, southern English, and maybe even Irish and Scottish.
I would not say the universal one but the standard one which could be considered as an equivalent of text book English or RP.
Isnt arabic actually a bunch of different langauges? It would make sense the universal one would be polite.
Arabic is same language. But there are different dialects. Like Liverpool english, highpoch, RP, amrican English, southern English, and maybe even Irish and Scottish.
I would not say the universal one but the standard one which could be considered as an equivalent of text book English or RP.