/s/ Sound Spelled ST Word List
Besides the s spelling, the /s/ sound has six more common spellings, c, ce, ss, sc, st, and se.
The "st" spelling doesn’t appear at the beginning of words, but it does appear at the beginning of chunks after the first chunk.
Of the 7,000 words in the database constructed from a popular children’s dictionary, 22 of them are words with the /s/ sound spelled "st".
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.