pad

from The American Heritage® Dictionary of the English Language, 5th Edition.

• intransitive verb To go about on foot.
• intransitive verb To move or walk about almost inaudibly.
• intransitive verb To go along (a route) on foot.
• noun A muffled sound resembling that of soft footsteps.
• noun A horse with a plodding gait.
• noun A thin, cushionlike mass of soft material used to fill, to give shape, or to protect against jarring, scraping, or other injury.
• noun 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.
• noun A flexible saddle without a frame.
• noun An ink-soaked cushion used to ink a rubber stamp.
• noun 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.
• noun The broad floating leaf of an aquatic plant such as a water lily.
• noun The flattened fleshy stem of a cactus such as a prickly pear.
• noun The fleshy underside of the end of a finger or toe.
• noun The cushionlike flesh on the underpart of the toes and feet of many animals.
• noun The foot of such an animal.
• noun A launch pad.
• noun A helipad.
• noun A keypad.
• noun A touchpad.
• noun Slang One's living quarters, especially an apartment.
• transitive verb To line or stuff with soft material.
• transitive verb To lengthen or increase, especially with extraneous or false information.

from The Century Dictionary.

• noun A road-horse; a horse for riding on the road, as distinguished from a hunter or a work-horse, etc.; a roadster.
• To travel on foot; tramp slowly or wearily along; trudge or jog along.
• To travel on foot over or along; proceed on foot through; journey slowly, steadily, or wearily along.
• To tread or beat down; make smooth and level by treading: as, to pad a path.
• noun [pad, verb] A dull sound, as of footsteps.
• To stuff or furnish with a pad or padding: often with out.
• To expand by the insertion of extraneous or needless matter, or the use of unnecessary words: as, to pad an article in a newspaper; to pad out a page in a book.
• In calico-printing, to impregnate (the cotton cloth to be printed) with a mordant. It is done in a machine called a padding-machine (which see).
• To glue the edges of (sheets of paper) together, so as to form a pad.
• In mech., to puncture with numerous fine holes, as the end of a pipe, or the rose on the end of a nozle.
• noun A path; a footpath; a road.
• noun A pannier; a basket.
• To be a footpad, or highway robber; frequent roads or highways in order to rob.
• To move with the soft thud of a bare foot striking the ground.
• In leather-making, to apply a heavy coating of solution to.
• In India, to pack on an elephant's pad.
• noun A robber; a footpad.
• noun A soft cushion, or something of the nature of a cushion, or a stuffed part, as of a garment, a saddle, etc., used to fill up a hollow, to relieve pressure, or as a protection.
• noun Specifically— In cricket, a wadded guard worn to protect the leg by a batsman or wicket-keeper.
• noun In embroidery, a small qnantity of fibrous material, such as raw cotton or silk, used for raising parts of a pattern, the stitch covering it closely.
• noun One of the large, fleshy, thick-skinned protuberances of the sole of the foot of various quadrupeds, as the dog or fox; hence, specifically, the foot of a fox.
• noun One of the tylari of a bird's foot; one of the cushion-like enlargements on the under side of a bird's toes. Compare heel-pad and pterna.
• noun In anatomy, the splenium of the corpus callosum. See splenium.