There are 16 words that start with 'splas'.
| splash | splashy |
| splashed | splasher |
| splashes | splashers |
| splashier | splashily |
| splashing | splashdown |
| splashiest | splashboard |
| splashdowns | splashiness |
| splashboards | splashinesses |
Note: These 16 words that start with 'splas' are found from the USA & Canada version of the tournament Scrabble word list.