There are 15 words that end with 'osal'.
| deposal | exposal |
| mucosal | serosal |
| reposal | disposal |
| neurosal | petrosal |
| proposal | supposal |
| sclerosal | squamosal |
| submucosal | thimerosal |
| counterproposal | |
Note: These 15 words that end with 'osal' are found from the USA & Canada version of the tournament Scrabble word list.