There are 11 words that start with 'consci'.
| conscious | conscience | 
| consciences | consciouses | 
| consciously | conscionable | 
| conscientious | consciousness | 
| conscienceless | conscientiously | 
| consciousnesses | |
Note: These 11 words that start with 'consci' are found from the USA & Canada version of the tournament Scrabble word list.