Ask for some chips in the UK and you will most likely end up with oblong batons of potato that have been deep fried in oil and wrapped up in paper. Ask for chips in the US and you will be given a packet of thinly sliced potatoes that have been fried or baked until crispy. The reason for this is that Brits and Americans use the same words but have slightly different understanding of what those words mean. We actually speak a different language to our American cousins.
The same is true in the world of ministry to teenagers. Church members, youth workers, and pastors can all be using the same terminology, but be speaking very different languages.