The capital of Minorca is Mahon, which is a five letter word. Mahon is a city located on the Spanish island of Minorca in the Mediterranean Sea. It is the largest city on the island and is known for its natural harbor. The city has a long history, having been founded by the Carthaginians in the 5th century BC. Today, it is a popular tourist destination, with many attractions such as the Minorca Museum of Natural History and the Minorca Aquarium.