convenient for use or disposal; "the house is available after July 1"; "2000 square feet of usable office space" 同义词:available, usable,
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" 同义词:functional, usable, operable, operational,
capable of being put to use; "usable byproducts" 同义词:usable,