2. (numeral) ninth - when used with this meaning it is preceded by te and followed by o.
I te iwa o Māehe ka uru mai a Kāwana Kerei mā runga i te kaipuke, i te Castor (TTR 1990:269). / On 9 March Governor Grey entered on the ship Castor.
Synonyms: tuaiwa
3. (numeral) grouping of nine.
Ko ia te Māori tuatahi i riro nāna te tari i whakahaere, ā, mau ana i a ia te tūranga nei mō te iwa tau (TTR 2000:187). / He was the first Māori to head the department and he held the position for nine years.
4. (numeral) combines with other words to form other numbers.
Ko te tini o ngā reo o te ao nei e tae ana ki te rua mano e iwa tekau mā whā (KO 15/8/1885:8). / The many languages of the world number two thousand and ninety four.
5. (noun) ninth month of the Māori lunar calendar - approximately equivalent to February.
Ko whiti ake ai te iwa o ngā marama, ka puta mai te taua puretumu a Ngāti Hauā ki Parahaki, ki te kāinga i patua ai te tūpāpaku (JPS 1990:19). / The ninth month had passed when Ngāti Hauā's party seeking redress appeared at Parahaki, at the village where the victim was killed.