There are 13 words that end with 'miums'.
| osmiums | cadmiums |
| holmiums | fermiums |
| premiums | chromiums |
| didymiums | encomiums |
| gelsemiums | neodymiums |
| epithalamiums | praseodymiums |
| superpremiums | |
Note: These 13 words that end with 'miums' are found from the USA & Canada version of the tournament Scrabble word list.