As a writer, you’re always searching for the best word. Word choice is probably one of the most important tools you can develop. It helps when you have plenty of words to choose from. The best way to give yourself those choices is to develop your vocabulary.
As an exercise: find a vocab list of words you don’t use often or don’t know and write a story. You can check out places like Vocabulary.com, RandomWordGenerator.com or WordCounter.net to get a list of words to get you started. Try to use every word on your list to make a short story.