Thank you, María José.
Pjt, these are a kind of labels I've made for myself in order to distinguish among the possible choices a speaker can make when speaking. In fact, I wanted to distinguish between a language for everyday situations and trivial conversations. I thought that my examples could help.
For instance, I could use the form "pass away" when I'm going to offer somebody my condolences. I could say "die" after reading something about an accident at the newspapers. I could listen to "bite the dust" in a violent film. And all the three examples, in different contexts, have the same meaning of losing one's life. I didn't mean that all the people use the three different styles when talking, but most of them are able of understand them in different situations.
