* "Dog": This is the most common meaning of "ngui".
* "A type of traditional Kikuyu spear": This meaning is less common, but still valid. The "ngui" spear is a short, heavy spear that is used for hunting and warfare.
* "A person who is brave and fearless": This is a metaphorical meaning that is derived from the dog's reputation for courage.
To determine the precise meaning of "ngui", you need to consider the context in which it is used. For example, if you hear someone say "ngui ndogo" (small dog), then you know that "ngui" refers to a dog. But if you hear someone say "ngui wa kumenya" (a spear for hunting), then you know that "ngui" refers to a spear.
It's important to note that the Kikuyu language is a very rich and nuanced language, and the meaning of a word can vary depending on the context. If you are unsure of the meaning of a Kikuyu word, it is always best to ask a native speaker.