There are 12 words that start with 'voci'.
| vociferant | vociferate |
| vociferous | vociferated |
| vociferates | vociferator |
| vociferating | vociferation |
| vociferators | vociferously |
| vociferations | vociferousness |
Note: These 12 words that start with 'voci' are found from the USA & Canada version of the tournament Scrabble word list.