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Which adjective should I use?

They handed Dad and Mom a (big, large) amount of money. 

Can I substitute the word sum for amount in the same sentence? 
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RommelCan I substitute the word sum for amount
Not can, but should:

They handed Dad and Mom a large sum of money.
Comments  

money | collocation examples, Usage and Definition | collocation dictionary (freecollocation.com)


big- adj= There's BIG money in tech. (There is a lot of money to be made.)

large- as a quantifier- which can be used with sum or amount- used to discuss quantity. They've recently inherited a large sum of money. They've recently inherited a large amount of money.