Definitions from Wiktionary ( )

▸ noun:  A supply (especially a large one) of something kept for future use, specifically in case the cost of the item increases or if there a shortage.
▸ noun:  (specifically, military, weaponry) A supply of nuclear weapons kept by a country; a nuclear stockpile.
▸ noun:  (mining) A pile of coal or ore heaped up on the ground after it has been mined.
▸ verb:  (transitive)
▸ verb:  To accumulate or build up a supply of (something).
▸ verb:  (specifically, military, weaponry) To build up a stock of (nuclear weapons).
▸ verb:  (mining) To heap up piles of (coal or ore) on the ground after it has been mined.
▸ verb:  (intransitive) To build up a supply; to accumulate.

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