An archipelago (pronounce /ɑrkəˈpɛləgoʊ/) is a chain or cluster of islands. The word archipelago literally means "chief sea", from Greek arkhon (arkhi-) ("leader") and pelagos ("sea"). In antiquity, the Archipelago (Greek: Αρχιπέλαγος) was the proper name for the Aegean Sea and, later, usage shifted to refer to the Aegean Islands (since the sea is remarkable for its large number of islands). It is now used to generally refer to any island group or, sometimes, to a sea containing a large number of scattered islands like the Aegean Sea.