Definition of "Pile" :
noun: a nuclear reactor that uses controlled nuclear fission to generate energy
noun: 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."
noun: a column of wood or steel or concrete that is driven into the ground to provide support for a structure
noun: battery consisting of voltaic cells arranged in series; the earliest electric battery devised by Volta
noun: fine soft dense hair (as the fine short hair of cattle or deer or the wool of sheep or the undercoat of certain dogs)
noun: a collection of objects laid on top of each other
noun: a large sum of money (especially as pay or profit)
noun: (often followed by of') a large number or amount or extent
verb: place or lay as if in a pile
"The teacher piled work on the students until the parents protested."
verb: arrange in stacks
verb: press tightly together or cram