What's a Trope?

Tropes are where we start putting words on the page. A trope is anything that will fulfil reader expectation in a certain type of story. They're just lists of things at different levels of analysis. So if you get these lists of tropes, as i said, they're all over and it's not clear which ones can work together and which ones can't. And so what's the problem? Well, when a writer goes to a list of Tropes, what they're actually trying to do is find out,. what are the components that i can use to satisfy my reader's expectations?"