stockpile
US /ˈstɑːk.paɪl/
UK /ˈstɑːk.paɪl/
1.
a large amount of food, goods, or weapons that are kept ready for future use:
:
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They have a stockpile of weapons and ammunition that will last several months.
1.
to store a large supply of something for future use:
:
•
The rebels have been stockpiling weapons.