There are 11 words that end with 'orism'.
| porism | algorism |
| aphorism | colorism |
| rigorism | meliorism |
| terrorism | hypocorism |
| behaviorism | ecoterrorism |
| antiterrorism | |
Note: These 11 words that end with 'orism' are found from the USA & Canada version of the tournament Scrabble word list.