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).
Levantine Arabic
The primary division between Arabic dialects in ancient times was between Northern Old Arabic, spoken in the southern Levant, and Old Hijazi, spoken in the northern, and later central Hijaz. The main representatives of Northern Old Arabic were Safaitic, Hismaic, and Nabataean Arabic. Tens of thousands of graffiti in the Safaitic and Hismaic scripts cover the deserts of southern Syria and present-day Jordan. The Safaitic inscriptions sometimes exhibit the article ʾ(l), a shared areal isogloss with the Arabic substrate of the Nabataean inscriptions. Many Safaitic inscriptions exhibit all of the features typical of Arabic. The Hismaic script was used to compose two long texts in an archaic stage of Arabic before the language acquired the definite article.