1. Archipelago - a group or chain of islands such as the several island chains of Asia.
2. Monsoon - plenty of rain brought to the Asia's region by seasonal winds.
3. Sultans - are supreme rulers who governed the Ottoman empire.
4. Feudalism - a way of organizing and governing society.
5. Vassal - nobles who did not own land and took an oath of loyality to the lord by pledging to serve him.