cache

Noun

• (computer science) RAM memory that is set aside as a specialized buffer storage that is continually updated; used to optimize data transfers between system elements with different characteristics

• a secret store of valuables or money

• a hidden storage space (for money or provisions or weapons)

Verb

• save up as for future use

Related words

• Synonyms: 
  memory cache , hoard , stash , lay away , hive up , squirrel away