There are 9 words that start with 'roen'.
| roentgen | roentgens |
| roentgenogram | roentgenology |
| roentgenograms | roentgenologic |
| roentgenography | roentgenologies |
| roentgenologist | |
Note: These 9 words that start with 'roen' are found from the USA & Canada version of the tournament Scrabble word list.