What is the definition of "cache," and in what circumstances would it be appropriate to use it?

The word "cache" means a collection of hidden items. A cache is like a hidden stockpile, or hidden supply. One might have a cache of weapons or even of treasure. It would be appropriate to use this term to describe a pile of items that someone would want to hide for later. For example, a pirate might have a cache of gold. A thief might have a cache of stolen property. A criminal might have a cache of weapons.

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