Their five useable 4·5 howitzers had been placed in a perfect how.
Each has a useable length of 1000 feet, a useable width of 110 feet.
Your ankle should be useable by the time our next supply plane from Hawaii takes off.
Evidently he rigged up a furnace and melted the metal into useable form.
To peff, meaning to cough faintly (like a sheep), is hardly a useable word.