There are 16 words that start with 'solar'.
| solar | solaria |
| solarise | solarism |
| solarium | solarize |
| solarised | solarises |
| solarisms | solariums |
| solarized | solarizes |
| solarising | solarizing |
| solarization | solarizations |
Note: These 16 words that start with 'solar' are found from the USA & Canada version of the tournament Scrabble word list.