Here are some options and their nuances:
General:
* Mea: This means "thing" or "object" and is the most common translation. It can be used for a wide range of things.
* Nā mea: This is the plural form of "mea" and means "things" or "objects."
Specific:
* Nā mea pono: This literally means "necessary things" and can be used for essential items.
* Nā mea hōʻike: This literally means "show things" and could be used for things on display.
* Nā mea pāʻani: This literally means "play things" and could be used for toys or games.
Contextual:
The best word to use will depend on the context. For example, if you are talking about "stuff" in your house, you could say "nā mea i loko o ka hale" (things in the house).
Ultimately, the best way to translate "stuff" or "things" into Hawaiian is to consider the specific context and choose the word that best fits the situation.