The term 'Dweller in a Yemeni Port' can be summarized as an Adeni, which is a five-letter word. An Adeni is a person who lives in the port city of Aden, Yemen. Aden is the largest port in Yemen and is located on the Gulf of Aden. It is a major hub for trade and commerce in the region. The city has a long history, having been founded by the ancient Egyptians and later occupied by the British in the 19th century. Today, Aden is a bustling city with a diverse population.