Meaning : Fit or ready for use or service.
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.
Synonyms : functional, operable, operational, useable
Usable ka meaning, vilom shabd, paryayvachi aur samanarthi shabd in Hindi. Usable ka matlab kya hota hai?