There are 16 words that end with 'trial'.
| trial | atrial |
| retrial | mistrial |
| pretrial | posttrial |
| industrial | intertrial |
| semestrial | sinoatrial |
| endometrial | terrestrial |
| nonindustrial | preindustrial |
| postindustrial | semiterrestrial |
Note: These 16 words that end with 'trial' are found from the USA & Canada version of the tournament Scrabble word list.