A desert of northern Arabia occupying western Iraq, southern Syria, eastern Jordan, and northern Saudi Arabia WordNet 3.0 & Open English WordNet

The Syrian Desert, also known as the North Arabian Desert, the Jordanian steppe, or the Badiya, is a region of desert, semi-desert and steppe covering 500,000 square kilometers of the Middle East, including parts of southern Syria, eastern Jordan, northern Saudi Arabia, and western Iraq. Wikipedia

Region of desert, semi-desert and steppe of the Middle East; in parts of Syria, Jordan, Iraq, and Saudi Arabia Wikidata

A region of desert, semi-desert and steppe in Western Asia, covering 500,000 square kilometers (200,000 square miles), including parts of south-eastern Syria, northeastern Jordan, northern Saudi Arabia, and western Iraq. Wiktionary