There are 21 words that end with 'otter'.
| otter | cotter | dotter | 
| hotter | lotter | jotter | 
| potter | rotter | totter | 
| blotter | knotter | plotter | 
| slotter | spotter | swotter | 
| trotter | allotter | garotter | 
| boycotter | pinspotter | sandlotter | 
Note: These 21 words that end with 'otter' are found from the USA & Canada version of the tournament Scrabble word list.