There are 18 words that start with 'vacc'.
| vaccina | vaccine | vaccinal |
| vaccinas | vaccinee | vaccines |
| vaccinia | vaccinate | vaccinees |
| vaccinial | vaccinias | vaccinated |
| vaccinates | vaccinator | vaccinating |
| vaccination | vaccinators | vaccinations |
Note: These 18 words that start with 'vacc' are found from the USA & Canada version of the tournament Scrabble word list.