amass

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
    

• collect or gather
  • Journals are accumulating in my office
    
  • The work keeps piling up
    

Related words

• Synonyms: 
  roll up , collect , accumulate , pile up , compile , hoard , cumulate , conglomerate , gather