There are 17 words that start with 'bobb'.
| bobby | bobbed | bobber | 
| bobbin | bobble | bobbers | 
| bobbery | bobbies | bobbing | 
| bobbins | bobbled | bobbles | 
| bobbinet | bobbling | bobbysox | 
| bobberies | bobbinets | |
Note: These 17 words that start with 'bobb' are found from the USA & Canada version of the tournament Scrabble word list.