There are 12 words that start with 'drill'.
| drill | drills | 
| drilled | driller | 
| drillers | drilling | 
| drillable | drillings | 
| drillmaster | drillability | 
| drillmasters | drillabilities | 
Note: These 12 words that start with 'drill' are found from the USA & Canada version of the tournament Scrabble word list.