* Tāua (general term for grandfather)
* Koroua (for paternal grandfather)
* Koro (informal and affectionate term for grandfather)
* Tupuna (ancestor, can also be used for grandfather)
The specific word you would use would depend on the context.
For example:
* You might use tāua when speaking formally about a grandfather.
* Koroua would be used when referring to a paternal grandfather, while koro would be used in a more informal setting.
* Tupuna can be used to refer to any ancestor, including a grandfather.
It's important to note that Māori language is dynamic, and the specific terms used can vary depending on the region and dialect.