rua kōiwi
1. (noun) burial place, burial cave - strictly speaking the burial place of the bones of the dead.
Kei reira te tomokanga mā raro i te moana ki te rua kōiwi o ngā tūpāpaku rongonui o Kāwhia i ngā wā ki muri (M 2004:114). / That is where the entrance is to the subterranean burial place of the honoured dead of Kāwhia of former times.