hoard

Noun

• a secret store of valuables or money

Verb

• get or gather together
  • I am accumulating evidence for the man's unfaithfulness to his wife
    
  • She is amassing a lot of data for her thesis
    
  • She rolled up a small fortune
    

• save up as for future use

Related words

• Synonyms: 
  cache , stash , roll up , collect , accumulate , pile up , amass , compile , lay away , hive up , squirrel away