There are 17 words that end with 'rions'.
prions | durions | morions |
turions | virions | carrions |
chorions | clarions | morrions |
vibrions | decurions | centurions |
criterions | tellurions | counterions |
zwitterions | septentrions | |
Note: These 17 words that end with 'rions' are found from the USA & Canada version of the tournament Scrabble word list.