There are 9 words that start with 'pennyw'.
| pennywise | pennywort | 
| pennyworth | pennyworts | 
| pennyweight | pennyworths | 
| pennyweights | pennywhistle | 
| pennywhistles | |
Note: These 9 words that start with 'pennyw' are found from the USA & Canada version of the tournament Scrabble word list.