There are 15 words that start with 'vort'.
| vortex | vortexes | vortical | 
| vortices | vorticism | vorticist | 
| vorticity | vorticose | vortically | 
| vorticella | vorticisms | vorticists | 
| vorticellae | vorticellas | vorticities | 
Note: These 15 words that start with 'vort' are found from the USA & Canada version of the tournament Scrabble word list.