Meaning of “stockpile” - Learner’s Dictionary

stockpile

verb [ T ] uk us /ˈstɒkpaɪl/

to collect a lot of something, usually so that it can be used in the future:

to stockpile food
stockpile noun [ C ]

a stockpile of weapons

(Definition of “stockpile” from the Cambridge Learner’s Dictionary © Cambridge University Press)