1. Leaf: This is the most common meaning of "rau" and is often used in plant names, like "rau kōwhai" (kōwhai leaf).
2. Hundred: It can also mean "hundred," as in "rau tau" (one hundred years).
3. Many, numerous: "Rau" can also refer to a large quantity or number. For example, "rau tangata" (many people).
4. Layer, covering: "Rau" can also refer to a layer or covering, as in "rau whāriki" (a layer of mats).
5. Plentiful: "Rau" can also mean "plentiful" or "abundant."
To understand the correct meaning of "rau" in a specific context, you need to consider the surrounding words and the overall meaning of the sentence.