There are 15 words that start with 'chaff'.
| chaff | chaffs | chaffy | 
| chaffed | chaffer | chaffers | 
| chaffier | chaffing | chaffered | 
| chafferer | chaffiest | chaffinch | 
| chafferers | chaffering | chaffinches | 
Note: These 15 words that start with 'chaff' are found from the USA & Canada version of the tournament Scrabble word list.