There are 10 13-letter words that start with 'sens'.
| sensationally | senselessness | 
| sensibilities | sensitisation | 
| sensitiveness | sensitivities | 
| sensitization | sensitometers | 
| sensitometric | sensorineural | 
Note: These 10 13-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)