Entity

Thing. That's what it means. Really.

So what does it have to do with finances? Well, it gets used in contracts a lot—basically anytime legalese makes an appearance. For example, "business entity" is used when describing what kind of business a person is setting up (corporation? non-profit?). It can also be used when describing a separate part of a business (a division or department).

So yeah, it's a weird entity.