Pad1  —n. 1 thick piece of soft material used to protect, fill out hollows, hold or absorb liquid, etc. 2 sheets of blank paper fastened together at one edge, for writing or drawing on. 3 fleshy underpart of an animal's foot or of a human finger. 4 guard for the leg and ankle in sports. 5 flat surface for helicopter take-off or rocket-launching. 6 slang lodgings, flat, etc. 7 floating leaf of a water lily. —v. (-dd-) 1 provide with a pad or padding; stuff. 2 (foll. By out) lengthen or fill out (a book etc.) With unnecessary material. [probably low german or dutch]