The term VAST AMOUNT OF MONEY can be summarized as a large sum of money, and the crossword solution for this term is MINT, which is a four-letter word. A MINT is an institution that produces coins and other forms of currency, and it is also used to refer to the place where large amounts of money are stored. Therefore, the term VAST AMOUNT OF MONEY can be summarized as a large sum of money that is typically stored in a MINT.