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 a variety of Arabic and as such shares many features with other modern varieties, especially the Maghrebi varieties of Arabic. Some of its distinctive features (compared to other Arabic dialects) are listed here.The Arabic dialects of Tunisia belong to either pre-Hilalian or Hilalian dialectal families.