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.

• 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 A path; a footpath; a road.
• noun A pannier; a basket.
• noun A road-horse; a horse for riding on the road, as distinguished from a hunter or a work-horse, etc.; a roadster.
• noun A robber; a footpad.
• To be a footpad, or highway robber; frequent roads or highways in order to rob.
• noun [pad, verb] A dull sound, as of footsteps.
• To move with the soft thud of a bare foot striking the ground.
• 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.
• noun In entomology, a projecting part of the body covered only with a membrane or semi-chitinous sheath: generally used in composition: as, the wing-pads of a pupa; the foot-pads or cushions on the tarsi.
• noun A cushion used as a saddle; a saddle of leather and padding, without any tree, such as are used by country market-women or by equestrian performers in a circus.
• noun A number of sheets of writing-, drawing-, or blotting-paper held together by glue at one or more edges, forming a tablet from which the sheets can be removed singly as used: as, a writing-pad; a blotting-pad.
• noun A bundle; bale; pack: as, a pad of wool; a pad of yarn. Among fish-dealers a pad of mackerel is 60 (sometimes 120) fish.
• noun The handle of some tools: as, the pad of a keyhole-saw.
• noun In ship-building, a piece laid over a ship's beam to give the camber.
• noun plural Thick ribbons, double-faced and watered, much in use at certain times for watch-guards. Compare Petersham ribbon, under ribbon.