1) Australian hip hop musician 2) God of wind 3) Hawaiian girl name 
[name] Hau is a surname shared by several notable people, among them being: ...[sociology] Hau is a notion made popular by the French sociologist Marcel Mauss in his 1925 book The Gift. Surveying the practice of gifts he came to the conclusion that it included same kind of belief in a force binding the receiver and giver. The term `Hau` used by the Maori became a paradigmatic example for such a view. Writing at the tu...
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In Maori mythology, Hau is the god of wind.