There are 23 7-letter words that start with 'pet'.
| petaled | petards | petasos | petasus |
| petcock | petered | petiole | petites |
| petnaps | petrale | petrels | petrify |
| petrols | petrous | petsais | petters |
| pettier | pettily | petting | pettish |
| pettled | pettles | petunia | |
Note: These 23 7-letter words that start with 'pet' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with petr, pett, peta, peti, petu, petn, pete, pets, petc.
4-letter words start with 'pet' (1)