For example, let's say I had a friend who is really good at fighting (or any sort of combat). If I say that he is "a god of war" as a show of respect, is that shirk? I'm not actually saying that he's God, I'm just emphasizing how good he is at fighting.
Another example, if a muslim man was trying to appreciate the beauty of his wife so he calls her a "goddess of beauty", is he committing shirk? Or if he said something like "She is my goddess" just to emphasize how much he respects her, is that shirk?
Also, in medieval England, some high ranking people used to be called "Lord". Is that shirk?