There are 12 words that end with 'rewing'.
| brewing | crewing | forewing | 
| screwing | shrewing | strewing | 
| beshrewing | bestrewing | unscrewing | 
| corkscrewing | microbrewing | overstrewing | 
Note: These 12 words that end with 'rewing' are found from the USA & Canada version of the tournament Scrabble word list.