Wiktionary Search Highlighter is a Chrome extension designed to streamline the process of looking up definitions directly from highlighted text on web pages. This free add-on allows users to highlight any term and instantly search for its meaning on Wiktionary by simply clicking the extension icon. This feature is particularly beneficial for students, writers, and language enthusiasts who need quick access to definitions while browsing.

In addition to its primary function, the extension also includes a fallback option: if the highlighted term is not found on Wiktionary, it will automatically perform a Google search. This dual functionality ensures that users receive comprehensive information, making it a valuable tool for anyone looking to enhance their vocabulary and understanding of the English language.