There are 21 9-letter words that end with 'ouses'.
Note: These 21 9-letter words that end with 'ouses' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words end with houses, rouses, iouses, louses, couses, pouses, nouses, bouses, douses, eouses, kouses, mouses, souses, touses, vouses.
6-letter words end with 'ouses' (9)