There are 12 words that end with 'ssures'.
| assures | fissures | 
| scissures | reassures | 
| pressures | tressures | 
| chaussures | preassures | 
| commissures | impressures | 
| acupressures | overpressures | 
Note: These 12 words that end with 'ssures' are found from the USA & Canada version of the tournament Scrabble word list.