There are 17 words that end with 'usable'.
usable | abusable | amusable |
causable | reusable | unusable |
accusable | arousable | excusable |
focusable | nonusable | perusable |
refusable | inexcusable | irrecusable |
nonreusable | transfusable | |
Note: These 17 words that end with 'usable' are found from the USA & Canada version of the tournament Scrabble word list.