There are several small pockets throughout Nejd, but the largest pocket is the Rob3a al-Khaali (ربع الخالي) which translates to "the Empty Quarter".
Saudi Arabia is mostly uninhabited, sandy deserts.
The Arabian Desert covers Arabia.
The desert in Saudi Arabia is Rub Al-Khali
There are 21 deserts in the Muslim world. Some of the notable deserts include the Arabian Desert, Sahara Desert, and the Thar Desert. Deserts play a significant role in the geography and climate of the regions they are located in.
The Arabian Desert is the largest desert in Saudi Arabia.
Both Saudi Arabia and Antarctica are primarily deserts. Admittedly, Antarctica is a cold desert, but both regions receive minimal rainfall.
A desert is a dry, hot, sandy, usually barren and uninhabited area.
The Arabian Desert is the major desert of Saudi Arabia.
Saudi Arabia is located in the Arabian Desert.
That position is part of the Rub'a al-Khali or Empty Quarter of Saudi Arabia. The area is an almost uninhabited desert.
The Arabian Desert covers most of Saudi Arabia.
A desert island is an island that is uninhabited by humans. Therefore you would not find people on a desert island.