There are 13 9-letter words that end with 'ower'.
| dayflower | disavower | mayflower | 
| lawnmower | minitower | firepower | 
| safflower | shallower | overpower | 
| sunflower | swallower | willpower | 
| windrower | ||
Note: These 13 9-letter words that end with 'ower' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words end with lower, power, rower, tower, dower, bower, hower, vower, mower, nower, cower, sower.
5-letter words end with 'ower' (10)