Hejaz
Historically, the Hejaz has always seen itself as separate from the rest of Saudi Arabia. The Hejaz is the most populated region in Saudi Arabia; 35% of all Saudis live there. Hejazi Arabic is the most widely spoken dialect in the region. Saudi Hejazis are of ethnically diverse origins.
Tunisian Arabic
Tunisian Arabic is one of the Arabic languages within the Semitic branch of the Afroasiatic language family. It is a variety of Maghrebi Arabic like Moroccan and Algerian Arabic, which are mostly unintelligible to Modern Standard or Mashriqi Arabic speakers. It has a considerable number of pre-hilalian dialects but is usually considered in its koiné form to be a mostly Hilalian variety of Maghrebi Arabic because it was affected by the immigration of Banu Hilal in the 11th century, as were the other Maghrebi varieties.