There are 13 words that start with 'justif'.
| justify | justified | 
| justifier | justifies | 
| justifiers | justifying | 
| justifiable | justifiably | 
| justification | justificative | 
| justificatory | justifiability | 
| justifications | |
Note: These 13 words that start with 'justif' are found from the USA & Canada version of the tournament Scrabble word list.