The phrase "large sums" refers to a significant amount of money. It implies that a considerable or substantial quantity of money is involved in a particular situation or transaction. Full definition
One - shot memories would have a wide range of possible applications such as protecting the transfer of large sums of money electronically. (sciencedaily.com)
He subsequently received various items, including miracle seeds, miracle oil, miracle beads and requests for large sums of money. (premierchristianity.com)
These commentators seem to be smart and clever but not intellectually honest; they get paid large sums of money to report news, whatever that is. (dotearth.blogs.nytimes.com)