This chapter covers something I struggled with in high school. Over used words can kill your story by making it boring. Its not hard to use different kinds of words by utilizing synonyms in your writing. In most cases this will extremely improve your writing by giving it more depth and making it more enjoyable to read.
The next topic covered is cliché in writing. I see clichés being used because we are all taught to write a certain way for years and penalized if we slightly stray from that. By doing this its cause a overuse of the same style whenever a writer gets comfortable. When everyone is taught the same it creates a space of clichés everyone uses with few being original.