There are 16 words that start with 'couns'.
| counsel | counsels | 
| counseled | counselee | 
| counselor | counselees | 
| counseling | counselled | 
| counsellor | counselors | 
| counselings | counselling | 
| counsellors | counsellings | 
| counselorship | counselorships | 
Note: These 16 words that start with 'couns' are found from the USA & Canada version of the tournament Scrabble word list.