* ʻIki: This is the most common and direct translation of "small" or "little," and can be used for something tiny.
* ʻUuku: This also means "small" but has a slightly stronger emphasis on being diminutive.
* Liʻiliʻi: This means "very small" or "tiny," and is a good choice for emphasizing the extreme smallness of something.
* Kūʻokoʻa: This literally means "very small" and emphasizes the size of something being "like a grain of sand."
The best choice will depend on the specific context. For example, if you are talking about a tiny insect, "ʻUuku" might be a good choice. If you are talking about a tiny seed, "Liʻiliʻi" or "Kūʻokoʻa" might be more appropriate.