/f/ Sound Spelled PH Word List
The /f/ sound has three common spellings, f, ff, and ph, and one unusual one, ugh. The ph spelling of the /f/ sound follows no pattern but, when reading, the ph spelling reliably represents the /f/ sound.
Of the 7,000 words in the database constructed from a popular children’s dictionary, 41 of them are words with the /f/ sound spelled "ph".
Note on the word divisions: Each word is divided into chunks determined by the unique and highly effective OnTrack Reading Multisyllable Method. The chunks are not syllables.