There are 14 words that start with 'sure'.
| sure | surer |
| surely | surest |
| surety | surefire |
| sureness | sureties |
| surefooted | surenesses |
| suretyship | suretyships |
| surefootedly | surefootedness |
Note: These 14 words that start with 'sure' are found from the USA & Canada version of the tournament Scrabble word list.