stockpile UK /ˈstɒkpaɪl/US /ˈstɑkˌpaɪl/verb 4noun 3forms 3 verb4 •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 — 2007 •To build up a supply; to accumulate. •To build up a stock of (nuclear weapons). •To heap up piles of (coal or ore) on the ground after it has been mined. noun3 •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 supply of nuclear weapons kept by a country; a nuclear stockpile. •A pile of coal or ore heaped up on the ground after it has been mined. formsstockpiled · stockpiling · stockpiles