There are 18 words that start with 'jaun'.
| jaunt | jaunce | jaunts | 
| jaunty | jaunced | jaunces | 
| jaunted | jauncing | jaundice | 
| jauntier | jauntily | jaunting | 
| jaundiced | jaundices | jauntiest | 
| jaundicing | jauntiness | jauntinesses | 
Note: These 18 words that start with 'jaun' are found from the USA & Canada version of the tournament Scrabble word list.