As a noun, a cache is a hidden store of things, or in computing, a special storage area that keeps data ready for quick access. As a verb, it means to hide or store something in such a place.
From French 'cacher' meaning 'to hide,' related to 'cachette' meaning 'hiding place.' It entered English for hidden supplies of food, weapons, or valuables. Computer science borrowed the term to describe hidden, faster storage that keeps frequently used data close at hand.
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