There are 15 words that start with 'rapt'.
| rapt | raptly | 
| raptor | raptors | 
| rapture | raptness | 
| raptured | raptures | 
| raptorial | rapturing | 
| rapturous | raptnesses | 
| rapturously | rapturousness | 
| rapturousnesses | |
Note: These 15 words that start with 'rapt' are found from the USA & Canada version of the tournament Scrabble word list.