There are 16 words that start with 'ignit'.
| ignite | ignited |
| igniter | ignites |
| ignitor | igniters |
| igniting | ignition |
| ignitors | ignitron |
| ignitable | ignitible |
| ignitions | ignitrons |
| ignitability | ignitabilities |
Note: These 16 words that start with 'ignit' are found from the USA & Canada version of the tournament Scrabble word list.