Dear Alexander Russkikh ... There is no such thing , there is only ONE language , it's called MSA it's the standard one , it's the LANGUAGE , anything other than MSA then it's a DIALECT , dialects are used in a clans or parts of a country . There is only MSA and CA classic arabic , this last one is no longer used , cause it's old and has near 0.1% difference between it and MSA .. MSA is the ARABIC LANGUAGE .

Egyptian Arabic in Arab world like English in the world :)

Is it true that egyptian arabic is the most common arabic language? It's a dialect not a language. I think most of the Arabian countries watch the Egyptian movie, plays and things like that, that's why it's well known between the dialects, however each country speaks it's own dialect. __ is it true that there is difference between arabic and modern standard arabic? I think you mean the difference between Classic Arabic and Modern Standard Arabic. Yes, there's a difference, the CA used to read the Holy Qura'an. MSA: used in TV shows, scientific and educational programs, books and novels, and things like that. Non of them is spoken in Arab countries, because as I mentioned we speak the DIALECT.

بأمكان اى عربى فهم اللهجة المصرية كما انها اسهل فى التعلم

it's an accent but it's not the right pronncition .