-able means able to be
acceptable (adj) - able to be received the way it is; worthy; satisfactory
detachable (adj) - able to be unfastened, taken apart, or separated
honorable (adj) - able to be a person of honor; worthy; of high rank; worthy of respect
imaginable (adj) - able to be imagined or thought of
laughable (adj) - able to be laughed at; amusing; funny
portable (adj) - able to be carried from one place to another
refundable (adj) - able to have money given back again
renewable (adj) - able to be created again
repairable (adj) - able to be fixed
washable (adj) - able to be laundered or washed