[...] In order for your sentences not to make the reader's eyes glaze over, you can't simply use the same core set of words, particularly important nouns and verbs, over and over again. You have to have synonyms at your fingertips and alternative constructions at your fingertips. And usually, though not in the sense of memorizing vocab words like we were kids, but having a larger vocabulary is usually the best way to do that. The best. having a good vocabulary ups the chances that we're going to be able to know the right word, even if that's the plainest word that will do and to achieve some kind of elegant variation, which I am kind of a fiend for.