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"piles" is also used as a crossword clue. If that's what you saw, the answer is often stacks (6 letters).
Definitions
a large number or amount
Word origin
From Latin pila (“ball”).
Used in a sentence
“Piles were sunk into the river to support the bridge.”
“He must earn piles of money.”
“Many women get piles when pregnant.”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer2 curated clues
01“Stacks”5 letters
02“Heaps”5 letters
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