There are 14 words that end with 'ostat'.
| aerostat | cryostat | gyrostat |
| hemostat | pyrostat | rheostat |
| chemostat | coelostat | heliostat |
| hydrostat | hygrostat | photostat |
| thermostat | bacteriostat | |
Note: These 14 words that end with 'ostat' are found from the USA & Canada version of the tournament Scrabble word list.