Rub' Al Khali is a proper noun referring to the Great Desert of the Arabian Peninsula. In Arabic, the phrase means “Empty Quarter.” As a term used in English, it is often treated as a foreign, multi-word place name or unit, and its pronunciation can vary by listener. The usual English pronunciation emphasizes the three-word sequence with a slight pause after Rub' and Al, aligning to common Arabic phonology adapted for English speakers.
Full pronunciation guide
