Our Mission

Our mission is to close the word gap so that students can achieve at higher levels. When learners are equipped with the building blocks of language, they have greater access to education, information, and opportunities.

At, we're passionate about growing strong readers, writers, and thinkers. That's what drives us to create innovative tools and engaging experiences that go above and beyond basic definitions to teach for depth of knowledge and enduring understanding.

Our Story

Founded in 2008, was built by a multidisciplinary team of educators, lexicographers, data scientists, and developers. Together, they recognized the need for an effective instructional technology that would empower learners to unpack the complexity and nuances of the English language. The solution they developed was, a platform built on best practices that is systematic, engaging, and adaptive.

To date, has served more than 5.1 billion questions to learners all over the world, and is used by 3.8 million students in 56,000 schools. In 2020 joined the growing family of education technology products offered by IXL Learning.

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Whether you’re a teacher or a learner, can put you or your class on the path to systematic vocabulary improvement.