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).
Hadhrami Arabic
There are a few lexical items that are shared with Modern South Arabian languages, which perhaps distinguish this dialect from other neighbouring Peninsular dialects. The effect of Hadhrami emigration to Southeast Asia (see Arab Indonesians and Arab Singaporeans), the Indian subcontinent and East Africa is clear in the vocabulary especially in certain registers like types of food and dress: "sarong." Many loanwords are listed in al-Saqqaf (2006).