It is in fact spelled homograph.
It's different from our society because everyone is formed to the government's will, and everything is the same. Harmony is maintained because of the extreme government control, and how they convince people that it is their own idea. I don't remember how rules are enforced or the last question, sorry.
This seems like a question that’s personal and should be answered as tp how YOU listen best. I personally listen like the fourth one the most.