There are 13 words that start with 'reinfo'.
| reinform | reinforce |
| reinforms | reinforced |
| reinforcer | reinforces |
| reinformed | reinforcers |
| reinforcing | reinforming |
| reinforceable | reinforcement |
| reinforcements | |
Note: These 13 words that start with 'reinfo' are found from the USA & Canada version of the tournament Scrabble word list.