There are 15 words that end with 'aiming'.
| aiming | maiming | 
| claiming | misaiming | 
| acclaiming | declaiming | 
| exclaiming | reclaiming | 
| disclaiming | misclaiming | 
| proclaiming | overclaiming | 
| quitclaiming | reacclaiming | 
| counterclaiming | |
Note: These 15 words that end with 'aiming' are found from the USA & Canada version of the tournament Scrabble word list.