- Mariana Islands, Marianas, Ladrone Islands - a chain of coral and volcanic islands in Micronesia (including Guam and the Northern Marianas) halfway between New Guinea and Japan; discovered by Magellan in 1521
--1 is a kind of archipelago
--1 is a part of Micronesia, Federated States of Micronesia, TT
--1 has parts: Northern Marianas, Northern Mariana Islands; Guam, GU