In order to be able use comprehensive listening and therefore gain understanding the listener first needs appropriate vocabulary and language skills. Using overly complicated language or technical jargon, therefore, can be a barrier to comprehensive listening. Comprehensive listening is further complicated by the fact that two different people listening to the same thing may understand the message in two different ways. This problem can be multiplied in a group setting, like a classroom or business meeting where numerous different meanings can be derived from what has been said.