There are 20 words that end with 'ison'.
| bison | grison |
| foison | poison |
| orison | prison |
| unison | benison |
| malison | liaison |
| venison | warison |
| empoison | garrison |
| imprison | jettison |
| caparison | comparison |
| postprison | intercomparison |
Note: These 20 words that end with 'ison' are found from the USA & Canada version of the tournament Scrabble word list.