There are 92 words that end with 'son'.
Note: These 92 words that end with 'son' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words end with rson, ison, ason, lson, mson, sson, nson, eson, oson, bson, dson, yson, pson, tson, uson, wson.