Saudi Arabia
The official language of Saudi Arabia is Arabic. The three main regional variants spoken by Saudis are Hejazi Arabic (about 6 million speakers), Najdi Arabic (about 8 million speakers), and Gulf Arabic (about 0.2 million speakers). Saudi Sign Language is the principal language of the deaf community. The large expatriate communities also speak their own languages, the most numerous of which are Tagalog (700,000), Rohingya (400,000), Urdu (380,000), Egyptian Arabic (300,000), and Indonesian (250,000).
Varieties of Arabic
Modern languages have also typically provided a significant number of new words, and have sometimes also influenced pronunciation or word order. Examples are Turkish and English in Egypt, French in North Africa and Syria, English and French in Lebanon, and English and Hebrew in Israel. However, a much more significant factor for all five dialect groups is, as Latin among Romance languages, retention (or change of meaning) of the form of Classical Arabic used in the Quran.