Adjective has 3 senses

• usable(s = adj.all) useable - capable of being put to use; "usable byproducts"

Derived form noun usableness₁, verb use₁

• usable(s = adj.all) functional, operable, operational, useable - fit or ready for use or service; "an operational aircraft"; "the dishwasher is now in working order"; "the lawnmower is a bit rusty but still usable"; "the toaster was still functional even after being dropped"

Derived form noun usableness₁, verb use₁

• usable(s = adj.all) available, useable - convenient for use or disposal; "2000 square feet of usable office space"; "the house is available after July 1"

Derived form verb use₁