There are 14 words that start with 'spas'.
| spas | spasm |
| spasms | spasmed |
| spastic | spasming |
| spastics | spasmodic |
| spasticity | spasmolytic |
| spastically | spasmolytics |
| spasticities | spasmodically |
Note: These 14 words that start with 'spas' are found from the USA & Canada version of the tournament Scrabble word list.