There are 14 words that start with 'regene'.
| regeneracy | regenerate |
| regenerable | regenerated |
| regenerates | regenerator |
| regeneracies | regenerately |
| regenerating | regeneration |
| regenerative | regenerators |
| regenerations | regenerateness |
Note: These 14 words that start with 'regene' are found from the USA & Canada version of the tournament Scrabble word list.