country, land, state - the territory occupied by a nation; "he returned to the land of his birth"; "he visited several European countries"

Bismarck Archipelago - a group of islands in the southwestern Pacific northeast of New Guinea; part of Papua New Guinea

Bougainville - the largest of the Solomon Islands; a province of Papua New Guinea

New Britain - the largest island in the Bismarck Archipelago; part of Papua New Guinea

New Guinea, Papua - a Pacific island north of Australia; the 2nd largest island in the world; governed by Australia and Indonesia

capital of Papua New Guinea, Port Moresby - the administrative capital and largest city of Papua New Guinea