FUNGIBLE

I read this word in an interview noted in a McGill newsletter, called In Conversation with Dr. Paul Farmer. He was speaking about global health and was talking about students.

He said, "But, the real fungible gift is really their enthusiasm."

I thought it was a mistake, a typo. They meant tangible, maybe.

It is, however, a real word! I am not sure it was used properly. Google search makes it seem like it is fungible to equivalent.

For example:

I went to the bank today. I asked for a $100 bill, but she gave me the fungible amount in twenties. I really wanted it to be special, so I asked for the fungible amount in one bill, and got what I was looking for.