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.
Arabic phonology
Modern Standard Arabic has six vowel phonemes forming three pairs of corresponding short and long vowels (). Many spoken varieties also include and . Modern Standard Arabic has two diphthongs (formed by a combination of short with the semivowels and ) in Classical Arabic with no allophones. Allophony in different dialects of Arabic can occur, and is partially conditioned by neighboring consonants within the same word. As a general rule, for example, and are: