What is another word for said with the letter f?

There isn't a perfect one-word synonym for "said" starting with "f." However, depending on the context, you could use:

Formal:

* Formed: (Used when someone *formed* an opinion or *formed* words)

* Furnished: (Used when someone *furnished* information)

Informal:

* Flung: (Used when someone *flung* out a statement, usually angrily)

* Fired: (Used when someone *fired* off a comment, quickly and forcefully)

* Felt: (Used when someone *felt* compelled to say something)

Other options:

* Finished: (To indicate the end of a statement)

* Found: (To suggest a discovery or realization expressed verbally)

Ultimately, the best alternative will depend on the specific context and the desired tone.