However, some possible options include:
* Pōkai: This is a general term for a large whale, but it can sometimes refer to orcas specifically.
* Toki: While this word primarily means "axe", it can also be used to describe the black and white markings of an orca.
* Manuwai: This is a more general term for "sea creature" and could be used to describe an orca.
It's important to note that the use of these words might vary depending on region and dialect, and some Maori speakers may not use them at all for orcas.
If you're looking for a more specific term, you could try using a phrase like "ngā ika nui kākāriki" (meaning "the big black fish") to describe an orca.
Ultimately, the best way to determine the most appropriate word or phrase would be to consult with a fluent Maori speaker.