Real Dictionary

pad
countable noun: A pad is a fairly thick, flat piece of a material such as cloth or rubber. Pads are used, for example, to clean things, to protect things, or to change their shape.
countable noun: A pad of paper is a number of pieces of paper which are fixed together along the top or the side, so that each piece can be torn off when it has been used.
verb: When someone pads somewhere, they walk there with steps that are fairly quick, light, and quiet.

PaD in American English
Pennsylvania Dutch

pad in American English 1
a soft, stuffed saddle
noun: a cushionlike mass of soft material used for comfort, protection, or stuffing

pad in American English 2
to travel on foot; walk; tramp
intransitive verb: to travel on foot; walk
noun: a dull, muffled sound, as of footsteps on the ground
transitive verb: to travel along on foot

pad in American English 3
the dull sound made by a footstep or staff on the ground

pad in American English 4
a path

pad in British English 1
noun: a thick piece of soft material used to make something comfortable, give it shape, or protect it
verb: to line, stuff, or fill out with soft material, esp in order to protect or give shape to

pad in British English 2
noun: a dull soft sound, esp of footsteps
verb: to walk with a soft or muffled tread