There are 10 words that end with 'iniums'.
| miniums | actiniums |
| dominiums | illiniums |
| aluminiums | delphiniums |
| gadoliniums | condominiums |
| einsteiniums | protactiniums |
Note: These 10 words that end with 'iniums' are found from the USA & Canada version of the tournament Scrabble word list.