Well, as a lawyer, I have found that there is the meaning most people attribute to words, and therefore, that meaning is what they intend to communicate.
But - even though that common meaning (which is well understood by everyone), is conveyed, there are some people who when confronted, scurry over to the historic and less used meaning of the same word, claiming purity in meaning.
So - does “Catholic Church” mean to you the organization seated in Vatican City, and headed by Pope Benedict, or not? Because the fact is, that is known as the Roman Catholic Church.
No.