is the quickest, easiest way to learn vocabulary. It combines the world’s smartest dictionary with an adaptive learning game that will have you mastering new words in no time.
Download for iOS and Android today.
may seem simple on the outside, but behind the scenes we’re using sophisticated algorithms to help you learn over 12,000 words more effectively.
How? We start with our massive pool of over 120,000 questions. Then, we use the science of learning to model how you learn. By comparing your answers to millions of answers given by other users, we can personalize your learning experience and choose the best question for you at just the right time.
Our dictionary was written for humans, by humans. Look up a word, and you’ll read a friendly explanation that you'll actually remember. It’s as if your favorite teacher were explaining it to you.
We include clever usage tips and thousands of real-world example sentences that'll show you how words live in the wild and will make you more confident about using them yourself.
See a word you’d like to know better? Tap "Learn this Word" and easily add it to your learning program.
Sure, there’s a lot of science and technology muscle behind our technique, but expanding your vocabulary doesn’t have to be a brain-buster.
We’ve turned learning vocabulary into an addictive game. Accumulate points, achievements, and badges while competing against your Facebook friends, your classmates, or other members of the community. Improving your vocabulary has never been this much fun.