pile, bundle, big bucks, megabucks, big money -- (a large sum of money (especially as pay or profit); "she made a bundle selling real estate"; "they sank megabucks into their new house")
down, pile -- (fine soft dense hair (as the fine short hair of cattle or deer or the wool of sheep or the undercoat of certain dogs))
voltaic pile, pile, galvanic pile -- (battery consisting of voltaic cells arranged in series; the earliest electric battery devised by Volta)
pile, spile, piling, stilt -- (a column of wood or steel or concrete that is driven into the ground to provide support for a structure)
pile, nap -- (the yarn (as in a rug or velvet or corduroy) that stands up from the weave; "for uniform color and texture tailors cut velvet with the pile running the same direction")