n.1. a.  A thin, cushionlike mass of soft material used to fill, to give shape, or to protect against jarring, scraping, or other injury.
b.  Sports   A piece of equipment consisting of shaped cushioning material often attached to a hard outer surface and worn to protect against blows, collisions, or shots.
 2.  A flexible saddle without a frame.
3.  An ink-soaked cushion used to ink a rubber stamp.
4.  A number of sheets of paper of the same size stacked one on top of the other and glued together at one end; a tablet.
5. a.  The broad floating leaf of an aquatic plant such as a water lily.
b.  The flattened fleshy stem of a cactus such as a prickly pear. Also called  paddle1.
 6. a.  The fleshy underside of the end of a finger or toe.
b.  The cushionlike flesh on the underside of the toes and feet of many animals.
c.  The foot of such an animal.
 7. a.  A launch pad.
b.  A helipad.
 8. a.  A keypad.
b.  A touchpad.
 9.  Slang   One's living quarters, especially an apartment.
 tr.v.  pad·ded, 
pad·ding, 
pads 1.  To line or stuff with soft material.
2.  To lengthen or increase, especially with extraneous or false information: pad a lecture with jokes; pad an expense account.