Dict-o-saurus Rex is an iPhone application developed by KFX Tech LTD. It is a free program that falls under the Education & Reference category. Dict-o-saurus Rex is a powerful word reference tool that allows users to discover the meanings of hundreds of thousands of real words.

One of the main features of Dict-o-saurus Rex is its ability to search for definitions and synonyms of words. As you type, the app provides a list of autocomplete suggestions, making it easier to find the word you're looking for. Additionally, every word you look up is automatically saved in your history for easy access later on.

Dict-o-saurus Rex also allows users to save words to their favorites by tapping the red heart icon. You can delete words from your history and favorites at any time. To further enhance the user experience, you can double tap or long press a word to jump to its definition or synonym.

The app also provides a convenient feature to navigate through your history. Simply swipe right or left to move forward and back. If you want to explore a word further, Dict-o-saurus Rex offers quick links to 8 popular online dictionaries without ever having to leave the app.

Dict-o-saurus Rex utilizes WordNet under the hood, which includes over 150,000 English word definitions. WordNet is an open-source lexical database provided by Princeton University. The API for using WordNet is produced by Lexicontext.

Dict-o-saurus Rex is a comprehensive word reference tool that provides users with a wealth of information and functionality. Whether you're a student, writer, or simply a word enthusiast, this app is a must-have for expanding your vocabulary and understanding the English language.