There are 14 words that end with 'ariums'.
| bariums | aquariums | rosariums |
| samariums | solariums | vivariums |
| calvariums | herbariums | terrariums |
| honorariums | oceanariums | sanitariums |
| leprosariums | planetariums | |
Note: These 14 words that end with 'ariums' are found from the USA & Canada version of the tournament Scrabble word list.