Which part of "common ownership" means that you somehow don't own it? The whole idea is that you do own it - in part, but enough to get a say in what to do with

Which part of "common ownership" means that you somehow don't own it? The whole idea is that you do own it - in part, but enough to get a say in what to do with it. "It" being the means of production - factories, data centers, farms. Not your personal belongings.