I. ˈstäk-ˌpī(-ə)l noun
Date: 1872
: a storage pile: as
a. : a reserve supply of something essential accumulated within a country for use during a shortage
b. : a gradually accumulated reserve of something
avert stockpile s of unsold cars — Bert Pierce
II. transitive verb
Date: 1921
1. : to place or store in or on a stockpile
2. : to accumulate a stockpile of
a country suspected of stockpiling weapons
• stock·pil·er noun