2. (negative) Used following a reason or asking why something has not taken place or will not take place.
(Te Pihinga Textbook (Ed. 2): 23;)
See also nā te aha ... i kore ai e ... ?
3. (negative) without, -less, lacking - used before or after nouns to indicate the absence or lack of that thing. Sometimes written as a separate word, sometimes joined or hyphenated.
(Te Pihinga Textbook (Ed. 2): 55, 89-90;)
See also kāinga kore, parakore
5. (negative) Used with kia to say 'so that something would not happen'.
(Te Māhuri Textbook (Ed. 2): 31-32;)
I kumea te poti ki uta rawa, kia kore ai e riro i te tai. / The boat was pulled right ashore so that it wouldn't be carried off by the tide.
See also kia kore ai ... e ...
7. (noun) oblivion, annihilation, destruction, nothingness.
Ā, ngaro noa iho ki te kore a Hou rātou ko tōna iwi (NM 1928:57). / And Hou and his people were annihilated.