There are 12 words that start with 'greenb'.
| greenbug | greenback |
| greenbelt | greenbugs |
| greenbacks | greenbelts |
| greenbrier | greenbacker |
| greenbriers | greenbackers |
| greenbackism | greenbackisms |
Note: These 12 words that start with 'greenb' are found from the USA & Canada version of the tournament Scrabble word list.