There are 14 words that start with 'delin'.
| delineate | delineated | 
| delineates | delineator | 
| delinquent | delineating | 
| delineation | delineative | 
| delineators | delinquency | 
| delinquents | delineations | 
| delinquently | delinquencies | 
Note: These 14 words that start with 'delin' are found from the USA & Canada version of the tournament Scrabble word list.