accumulate

/əˈkjuːmjʊˌleɪt/

#19,204 of the most-used English words

verb

1. To heap up in a mass; to pile up; to collect or bring together (either literally or figuratively)
   "He wishes to accumulate a sum of money."
2. To grow or increase in quantity or number; to increase greatly.
3. To take a higher degree at the same time with a lower degree, or at a shorter interval than usual.

Similar: aggregate, amound, collect, gather, amass, heap

adjective

1. Collected; accumulated.