There are 53 4-letter words that end with 'st'.
Note: These 53 4-letter words that end with 'st' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words end with est, ist, ast, ost, ust, rst, yst, dst, nst, gst, lst, pst, sst, wst.
3-letter words end with 'st' (1)