For size:
* Nui: This is the most common word for "big" or "large" and can be used for both physical size and abstract concepts.
* Nui rawa: This means "very large" or "huge."
* Whānui: This means "wide" or "broad" and can be used for size in two dimensions.
* Tūroa: This means "tall" or "high."
For greatness:
* Nui: Can also be used for things that are "great" in terms of importance, value, or quality.
* Rangatira: This means "chief" or "leader" and implies greatness in terms of status or authority.
* Whanaunga: This means "relative" or "kinsman" and implies greatness in terms of family or lineage.
* Mana: This refers to authority, power, or prestige and implies greatness in terms of influence.
* Tohunga: This refers to an expert or master and implies greatness in terms of skill or knowledge.
The best word to use will depend on the specific context and what you are trying to express.