Synonyms for stockpile
noun
A supply stored or hidden for future use:
backlog, cache, hoard, inventory, nest egg, reserve, reservoir, stock, store, treasure. (Slang) stash. See collect
verb
To accumulate and set aside for future use:
lay in, lay up, save (up), store (up). See keepTo store up (supplies or money), usually well beyond one's needs:
hoard, squirrel (away), treasure. (Slang) stash. See collect, give
Learn more about stockpile