There are 18 words that end with 'isons'.
bisons | grisons | foisons |
poisons | orisons | prisons |
unisons | benisons | malisons |
liaisons | venisons | warisons |
empoisons | garrisons | imprisons |
jettisons | caparisons | comparisons |
Note: These 18 words that end with 'isons' are found from the USA & Canada version of the tournament Scrabble word list.