amass

verbs

collect or gather
"Journals are accumulating in my office"; "The work keeps piling up"
accumulate, amass, conglomerate, cumulate, gather, pile up
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"
accumulate, amass, collect, compile, hoard, pile up, roll up