There are 17 words that start with 'vagi'.
| vagi | vagile | vagina | 
| vaginae | vaginal | vaginas | 
| vagility | vaginate | vaginally | 
| vaginated | vaginitis | vaginoses | 
| vaginosis | vagilities | vaginismus | 
| vaginitises | vaginismuses | |
Note: These 17 words that start with 'vagi' are found from the USA & Canada version of the tournament Scrabble word list.