pile

nouns

a collection of objects laid on top of each other
(often followed by `of') a large number or amount or extent
"a batch of letters"; "a deal of trouble"; "a lot of money"; "he made a mint on the stock market"; "see the rest of the winners in our huge passel of photos"; "it must have cost plenty"; "a slew of journalists"; "a wad of 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"
fine soft dense hair (as the fine short hair of cattle or deer or the wool of sheep or the undercoat of certain dogs)
is derived from
is derived from
battery consisting of voltaic cells arranged in series; the earliest electric battery devised by Volta
a column of wood or steel or concrete that is driven into the ground to provide support for a structure
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"
a nuclear reactor that uses controlled nuclear fission to generate energy

verbs

arrange in stacks
"heap firewood around the fireplace"; "stack your books up on the shelves"
see also
press tightly together or cram
"The crowd packed the auditorium"
place or lay as if in a pile
"The teacher piled work on the students until the parents protested"
is a type of (narrower)
put into a certain place or abstract location
"Put your things here"; "Set the tray down"; "Set the dogs on the scent of the missing children"; "Place emphasis on a certain point"