There are 11 words that start with 'bous'.
| bouse | bousy | 
| boused | bouses | 
| bousing | bousouki | 
| bousoukia | bousoukis | 
| boustrophedon | boustrophedons | 
| boustrophedonic | |
Note: These 11 words that start with 'bous' are found from the USA & Canada version of the tournament Scrabble word list.