Simplify the following text for a Grade 11 native English-speaking person.
Original: However , the term `` full communion '' is frequently used in a broader sense , to refer instead to a relationship between Christian Churches that are not united , but have only entered into an arrangement whereby members of each Church have certain rights within the other .
Simplified: But the term `` full communion '' is often used as well in that sense that these Christian Churches are not united , but have only an arrangement where members of each Church have certain rights within the other .