useable

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”

able to be put to use

• “usable byproducts”

convenient for use or disposal

• “the house is available after July 1”
• “2000 square feet of usable office space”