pad1
  
  n.
      - a thick piece of soft or absorbent material. ▸a protective guard worn over a part of the body by a sports player. 
- the fleshy underpart of an animal's foot or of a human finger.
- a number of sheets of blank paper fastened together at one edge.
- a flat-topped structure or area used for helicopter take-off and landing or for rocket-launching.
- informal a person's home.
- Electronics  a flat area on a track of a printed circuit or on the edge of an integrated circuit to which wires or component leads can be attached to make an electrical connection.
v.
 (pads, padding, padded)
    - 
[often as adj. padded]
 fill or cover with a pad.
- 
(pad something out)
 lengthen a speech or piece of writing with unnecessary material.
- N. Amer. defraud by adding false items to (an expenses claim or bill).
- 
(pad up)
 (in cricket) put on protective pads.
Derivative
  
  Etymology
  C16 (in the sense ‘bundle of straw to lie on’): of uncertain origin; the meaning ‘underpart of an animal's foot’ is perh. rel. to Low Ger. pad ‘sole of the foot’.
 
  
    
pad2
  
  v.
 (pads, padding, padded)
 walk with steady steps making a soft, dull sound.
n.
 the sound of such steps.
Etymology
  C16: from Low Ger. padden ‘to tread, go along a path’, partly imitative.