The main port of Iraq is BASRA, which is a five-letter word. BASRA is located in the southern part of Iraq and is the country's main port city. It is situated on the Shatt al-Arab waterway, which is a river that connects the Persian Gulf to the Tigris and Euphrates rivers. BASRA is an important commercial hub for Iraq, as it is the main port for importing and exporting goods. It is also a major oil-producing region, with many oil refineries located in the area.