There are 14 9-letter words that start with 'sens'.
| sensately | sensating | sensation | 
| senseless | sensibler | sensibles | 
| sensillae | sensillum | sensitise | 
| sensitive | sensitize | sensorial | 
| sensorium | sensually | |
Note: These 14 9-letter words that start with 'sens' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with sensi, sensu, sensa, sense, senso.
5-letter words start with 'sens' (2)