Dictionary
us•a•ble
Pronunciation: (yOO'zu-bul), [key]—
adj.
1. available or convenient for use:
2000 square feet of usable office space.
2. capable of being used:
That saw is no longer usable. Also,useable.Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.