The Open Dictionary of English contains audio from around the world, video snippets using the word in context, a large list of user samples and idioms, definitions from various sources, images, tutoring comments and much more.

The program uses quizzes that are set for each member's learning profile, providing personalized spaced repetition review.

LearnThatWord also offers classroom features and allows teachers to send words directly to student accounts.

All quiz units follow test-study principles [5] to provide adaptive tutoring.

The instant feedback provided in this formative assessment motivates and accelerates learning.

Practice words are reviewed over future sessions until the learner has answered correctly over a sequence of subsequent quizzes.

[citation needed] Detailed frequency datasets from the world's largest English language corpora allow LearnThatWord to present words in a logical order: Members can start with easy, everyday words and advance to harder ones in managed progression.

Entering the word correctly before listening to the audio earns a bonus point for the user.

This program, known as Vocabulary Junction, was expanded to serve all English learners, worldwide, during their first three years of learning the language.

[6] The organization was featured twice (2008 and 2011) as an "innovator company" by the Software and Information Industry Association (SIIA).