stockpile

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.

Under the rice subsidy program, Yingluck [Shinawatra]'s administration paid farmers up to 50 percent more than market prices for their rice. The policy was popular with farmers but left Thailand with huge rice stockpiles and caused $8 billion in losses.

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.

A pile of coal or ore heaped up on the ground after it has been mined.

To accumulate or build up a supply of (something).

He stockpiled weapons and took pot shots in the air / He feasted on their lovely bodies like a lunatic

Shops' shelves were emptied on Friday as people began stockpiling food, with some unable to leave their homes due to the thigh-high snow.

To accumulate or build up a supply of (something).

To heap up piles of (coal or ore) on the ground after it has been mined.

To build up a supply; to accumulate.