Improved vocabulary leads to better comprehension and can help readers become more fluent. Challenging words in our books are included in our Vocabulary feature, which developing readers can use to read and hear definitions as well as examples of these words in the context of the story.

At the begining and end of most of our books, you'll see a Vocabulary badge. Click it to view or listen to definitions for some of more challenging words from that book.

Included with each definition is an excerpt from the book where the word appears.