There are 17 words that start with 'firep'.
| firepan | firepot | firepans | 
| firepink | fireplug | firepots | 
| firepinks | fireplace | fireplugs | 
| firepower | fireproof | fireplaced | 
| fireplaces | firepowers | fireproofs | 
| fireproofed | fireproofing | |
Note: These 17 words that start with 'firep' are found from the USA & Canada version of the tournament Scrabble word list.