This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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v. Present participle of stockpile.

n. accumulating and storing a reserve supply

"The judges said there was nothing original about the idea of stockpiling vegetable purees for covert use in children's food.''"

stockpiled    stockpiles    stockpiling   

have got    have    hold    heap    cumulus   

shipment    fission    arsenal    hoard    shortage