"piling" in the noun sense
1. pile, spile, piling, stilt
a column of wood or steel or concrete that is driven into the ground to provide support for a structure
"piling" in the verb sense
1. stack, pile, heap
arrange in stacks
"heap firewood around the fireplace"
"stack your books up on the shelves"
2. throng, mob, pack, pile, jam
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"
Source: WordNet® (An amazing lexical database of English)
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