There are 13 words that end with 'inium'.
| minium | actinium | dominium |
| illinium | aluminium | pollinium |
| uredinium | delphinium | gadolinium |
| triclinium | condominium | einsteinium |
| protactinium | ||
Note: These 13 words that end with 'inium' are found from the USA & Canada version of the tournament Scrabble word list.