Vocab Tree is a Chrome add-on that replaces the new tab screen with rare English dictionary words. Designed to assist non-native English learners, this add-on helps users discover new English words while they surf the internet.

One of the challenges for non-native English speakers is encountering unfamiliar words that they may not even notice. This is especially true for words that are not critical for understanding the text they are reading. Vocab Tree aims to address this by highlighting rare English words on web pages, providing an opportunity for users to learn and expand their vocabulary.

With Vocab Tree, users can learn random new words with their meanings, allowing them to enhance their English vocabulary. This add-on is a useful tool for anyone looking to improve their language skills and broaden their understanding of the English language.