Main entry: stash, cache, hoard
Definition: a secret store of valuables or money
Main entry: hoard, roll up, pile up, amass, accumulate, collect, compile
Definition: get or gather together
Usage: 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
Main entry: squirrel away, stash, hive up, hoard, cache, lay away
Definition: save up as for future use