Adjective
1. able to be put to use;
"usable byproducts"2. fit or ready for use or service;
"the toaster was still functional even after being dropped""the lawnmower is a bit rusty but still usable""an operational aircraft""the dishwasher is now in working order"3. convenient for use or disposal;
"the house is available after July 1""2000 square feet of usable office space"