There are 17 words that end with 'iral'.
| viral | chiral | spiral |
| achiral | admiral | nadiral |
| nonviral | proviral | subviral |
| antiviral | arboviral | myxoviral |
| adenoviral | decemviral | retroviral |
| enteroviral | leptospiral | |
Note: These 17 words that end with 'iral' are found from the USA & Canada version of the tournament Scrabble word list.