Though nothing can replace the benefits of good old-fashioned reading, these fun apps and games can help broaden kids' vocabulary. Having a bigger vocabulary can benefit kids in all sorts of ways -- from being able to express themselves more clearly to doing well on all sorts of tests. And it's not just all about learning new words. To keep adding words to your personal word bank, it helps to know word parts, like roots, prefixes, and suffixes, so that you can recognize how words are related to each other and become a better reader and writer. And be sure to also check out our best Reading Comprehension Apps, Games, and Websites.