n. 25B6; plural noun
his new-found riches : MONEY, wealth, funds, (hard) cash, (filthy) lucre, wherewithal, means, (liquid) assets, capital, resources, reserves; opulence, affluence, prosperity; informal dough, bread, loot, shekels, moolah, the necessary; Brit. informal dosh, brass, lolly, spondulicks, readies; N. Amer. informal bucks, mazuma, dinero; US informal greenbacks, simoleons, jack, rocks; Austral./NZ informal Oscar; Brit. dated l.s.d.; archaic pelf.
underwater riches : RESOURCES, treasure(s), bounty, jewels, gems.