They have dug such a hole, and constructed such a forrest of mirrors that even they don't know anymore. The " church " is the " congregation ", the " congregation " is the " body of Christ ", or " the Bride of Christ." According to JW teaching ONLY the 144,000 are included in the " congregation ", although most JW's do not know this because they are poor students, even concerning thier own literature.
Having a Kingom Hall instead of a " church " or " congregation serves 2 purposes. 1) It separates Jw's from " false " religion. 2) It ensures that the word " congregation " is obscured, much like the words, steward, stewardship, intercessor, mediator. Just like the Bible is written only for the 144,00, the " congregation " is only made up of the 144,000, technically speaking. Normal " prospective " GC member JW's, are just hangers-on. They are only " associated " with the " congregation." They don't realize that they are not even considered part of the congregation. The KH is simply a feeding station where they MAY be able to gain salvation by thier support of Christ's brothers, the remnant of the " congregation."
See why they won't really answer...