The Fifth World Community (5WC) is the world's first diaxenospitia. The word diaxenospitia is a neologism. All inhabited localities (aka hamlets, villages, towns, cities or megacities), whether dispersed or nucleated, are located within a single, more or less continuous, geographic area. At some extremes, cities can sometimes comprise an archipelago (such as Seattle, Hong Kong, and Stockholm), and sometimes they can extend through a conurbation (such as Mumbai, Tokyo, New York City, and Mexico City).