One syllable words sorted by sound: /f/

I am creating lists of one syllable words sorted by sound. The sound this week is /f/, which can be spelled ‘f’, ‘ff’, or ‘gh’ If you can think of any one syllable, non-swear words with the /f/ sound that I missed, put them in the comments section of my Substack post: https://andreahazard.substack.com/p/one-syllable-words-sorted-by-sound-0b9