There are 17 words that start with 'porc'.
| porch | porches | 
| porcine | porcini | 
| porcino | porcinis | 
| porcelain | porcupine | 
| porcelains | porcupines | 
| porcelainize | porcelaneous | 
| porcelainized | porcelainizes | 
| porcelainlike | porcellaneous | 
| porcelainizing | |
Note: These 17 words that start with 'porc' are found from the USA & Canada version of the tournament Scrabble word list.