Acceptor

Doesn't this sound like the name of a dinosaur with a massive, gaping mouth? Like, you have velociraptor and gigantosaur and...acceptor?

Maybe not.

Acceptor refers to the entity responsible for paying a bill, i.e., they accept that liability. The type of bill requiring an acceptor is usually a bill of exchange, and has two players, other than the acceptor: the drawor and the drawee. A drone building company pays Plastics R Us for blades based on a check drawn from their Wells Fargo account. The plastics company brings that check to the bank, which then accepts responsibility for wiring the money to the right place.