MOTU Meaning of MOTU in English [ 'məʊtu: ]■ noun ( plural same) 1》 a member of a Melanesian people of Papua New Guinea inhabiting the area around Port Moresby. 2》 the language of the ~.Originthe name in Melanesian. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004