A CD is a Certificate of Deposit. You see, back in the 1900s, our parents had this thing called DISPOSABLE INCOME thought to be a myth, but trust me, it was real. People had so much money they wouldn’t starve to death if they didn’t work overtime.

Anyway, they needed a place to put it, so get this: they could deposit it into an account, and it would actually grow! Then they’d get a Certificate of Deposit to verify they really gave the bank the money because—guess what—it wasn’t a scam! They got the money back! I know, right? Amazing.