Jehovah's Witnesses

Many of the things JW do are noble indeed. But I have to ask, what is YOUR definition of a "church"? Is a church not a gathering of people intent on worship of their creator? If so, then why must JW differentiate themselves from "churches"; even so far as to call their church a "Kingdom Hall"? Is being a separatist doing God's work?

Well, the term "church" refers to the people that make up the congregation:

In the Bible, the Greek term that is sometimes translated “church” refers to a group of worshippers, not to the building they meet in.

Note this example: When the apostle Paul wrote to the Christians in Rome, he sent greetings to a couple named Aquila and Priscilla and added: “Greet the church that meets in their home.” (Romans 16:5, Contemporary English Version) Paul didn’t intend for his greetings to be conveyed to a building. Rather, he was sending his greetings to people—the congregation that met in that home. *

So instead of calling our place of worship a church, we use the term “Kingdom Hall.”

Why “Kingdom Hall of Jehovah’s Witnesses”?
This term is fitting for a number of reasons: