| useable | (adj) capable of being put to use, Syn. usable, Example: usable byproducts |
| available | (adj) convenient for use or disposal, Syn. useable, usable, Example: the house is available after July 1; 2000 square feet of usable office space |
| functional | (adj) fit or ready for use or service, Syn. useable, operable, operational, usable, Example: 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 |
| serviceability | (n) the quality of being able to provide good service, Syn. serviceableness, useableness, usability, usableness |
| unserviceable | (adj) not capable of being used, Syn. unusable, unuseable |