There are 18 words that start with 'fault'.
| fault | faults |
| faulty | faulted |
| faultier | faultily |
| faulting | faultiest |
| faultless | faultiness |
| faultfinder | faultlessly |
| faultfinders | faultfinding |
| faultinesses | faultfindings |
| faultlessness | faultlessnesses |
Note: These 18 words that start with 'fault' are found from the USA & Canada version of the tournament Scrabble word list.