tai nui
1. (noun) spring tide, king tide, tidal wave, huge tide.
Tekau mā rua putu te teitei o te tai nui i pā atu ki te ākau o Tonga, he motu kei te taha whakarua o Niu Tīrani (TWMNT 5/6/1877:149). / The tidal wave that struck the shores of Tonga, islands to the north-east of New Zealand, was twelve feet high.
See also taitai nunui