However, there are a few options depending on the context and desired nuance:
Formal/Literary:
* Knew: (Can sometimes be used as a synonym for "said" when implying knowledge or understanding.)
* Keynote: (Can be used to refer to a statement that sets a tone or theme.)
* Kept: (Can sometimes be used to refer to a statement that was continued or repeated.)
Informal/Slang:
* Knew: (In slang, can be used as a shortened form of "know" or "knew" to acknowledge or agree with something said.)
* Kind of: (Can be used as a filler word when someone is unsure of what to say next.)
Other possibilities:
* Kept (if the speaker continues to state something, you might use "kept" instead of "said" - Example: "She kept telling him to be careful.")
It's important to choose the word carefully based on the specific context and intended meaning.