* Kitten: This is the most common meaning of "chaton."
* Setting for a jewel: This refers to a small metal setting used to hold a jewel, especially in a ring.
The meaning will depend on the context. For example, "le chaton est adorable" (the kitten is adorable) uses "chaton" as a kitten, while "la bague a un chaton en or" (the ring has a gold setting) uses "chaton" as a jewel setting.