There are 11 words that start with 'vivis'.
| vivisect | vivisects | 
| vivisected | vivisector | 
| vivisecting | vivisection | 
| vivisectors | vivisections | 
| vivisectional | vivisectionist | 
| vivisectionists | |
Note: These 11 words that start with 'vivis' are found from the USA & Canada version of the tournament Scrabble word list.