Melanesia UK /ˌmɛl.əˈniː.zi.ə/US /ˌmɛl.əˈni.ʒə/ noun1 •A continental region of Oceania, consisting of New Guinea, the Bismarck Archipelago, the Solomon Islands, New Caledonia, Vanuatu and Fiji.My job, then, is that of a cultural and religious broker of sorts, co-opting Melanesia to serve as a stimulus to thought in Le Moyne classrooms. — 2004