You are absolutely correct, we ARE arguing over semantics. You are redefining the historic definition of what corprate means and has meant in the historic church.
EXACTLY, it was a **STIPULATIVE** definition, viz. ad hoc for the purpose of clarification. This debate wasn't over terminology it was over the scope of the RPW. Whether or not my definition is lexically precise is irrelevant. (But I do find it humorous you quote Piper and a PCA newspaper for the *historic* definition of corporate.)