There are 17 words that start with 'flatte'.
| flatted | flatten | flatter |
| flattens | flatters | flattery |
| flattest | flattened | flattener |
| flattered | flatterer | flatteners |
| flattening | flatterers | flatteries |
| flattering | flatteringly | |
Note: These 17 words that start with 'flatte' are found from the USA & Canada version of the tournament Scrabble word list.