Here are some possibilities:
* Pōhaku: This is a general term for rock or stone. It's often used for large, unshaped stones.
* Pōhaku kapu: This refers to a sacred stone.
* Pōhaku moa: This means "stone that is broken."
* Pōhaku lihi: This means "stone that is smooth."
* Pōhaku ʻaina: This means "stone of the land."
You could also use more specific terms based on the type of stone:
* Pōhaku mele: This refers to a stone used for grinding food (like a mortar and pestle).
* Pōhaku ʻōhiʻa: This refers to a stone used as a hammer or tool.
* Pōhaku pōhaku: This refers to a stone used as a weight.
The best word to use will depend on the context and the specific type of stone you're referring to.