There are 17 words that start with 'bourg'.
| bourg | bourgs | 
| bourgeon | bourgeois | 
| bourgeons | bourgeoise | 
| bourgeoned | bourgeoises | 
| bourgeoisie | bourgeoning | 
| bourguignon | bourgeoisies | 
| bourgeoisify | bourguignonne | 
| bourgeoisified | bourgeoisifies | 
| bourgeoisifying | |
Note: These 17 words that start with 'bourg' are found from the USA & Canada version of the tournament Scrabble word list.