You've got to love a word like fungible. I came across this word in an email from a colleague. When I saw it, I figured he wasn't talking about mushrooms. So I looked it up and it's an adjective that means interchangeable. (It's also a noun.)
Example: The product was designed modularly so that the user has a set of fungible features he can choose from.
But that's not the primary definition. The Merriam Webster states it as: being of such a nature that one part or quantity may be replaced by another equal part or quantity in the satisfaction of an obligation.
Now I can't wait to use fungible in a conversation.
