Dictionary definitions are vague

Definitions of words are important. It gives meaning. When we don't know a word, we use the dictionary. You acquire the definition and still don't know. Often people give up at this point, or think they know it. Even the word cliché can be hard. When I have a very hard word, I first look it up. I found the word discourse, but things were missing. I was reading Michel Foucault: What is an author? The concept of discourse was largely by Michel Foucault, and dictionary.com or Merriam-Webster did not mention him. This is why you go to wikipedia.org. The definitions and concepts of discourse on mainstream dictionaries are unintellectual.

A lot of people forget that words are concepts. I feel that the dictionary has failed us. For lots of words its far from reliable. If you want to be an real intellectual, investigate it. Or else you have no hope in using words the way it should be. I feel bad for people that trust the dictionary with their heart rather than their heads. Using our eyes and ears helps with these issues too. Finding videos on the concepts of words, is more powerful than the vague definition.