cache vs conceal

cache

verb
  • To place in a cache. 

  • To store data in a cache. 

noun
  • A fast temporary storage where recently or frequently used information is stored to avoid having to reload it from a slower storage medium. 

  • A container containing treasure in a global treasure-hunt game. 

  • A store of things that may be required in the future, which can be retrieved rapidly, protected or hidden in some way. 

conceal

verb
  • To hide something from view or from public knowledge, to try to keep something secret. 

How often have the words cache and conceal occurred in a corpus of books? (source: Google Ngram Viewer )