Advanced English Dictionary screenshot

Much more than a dictionary

Advanced English Dictionary is distinguished from the other (paper, electronic) dictionaries in many ways. Not because it contains far more words than a conventional paper dictionary, but because it uses a radically new approach and technology called WordNet. Instead of just listing the words and their definitions, Advanced English Dictionary shows how every word is linked to another. Type in the word "tree" and you will get not only the definition, synonyms and opposites, but the hypernyms (a tree is a kind of what?), meronyms (what are the parts of a tree?) and more. You can also find a list of hundreds of trees, from yellowwood to the Tree of Knowledge, and even all words that contain the letters t-r-e-e. This WordNet approach will help you to understand the meanings of words better. Linguists call WordNet project one of the biggest leaps for dictionaries since scholars sat down to write the epic Oxford English Dictionary.


Advanced English Dictionary uses one of the largest English dictionary databases. It includes up to 591,700 entries and more than 4.9 million words (both American and British English).


No internet connection required to search words - everything is stored on your device and available anytime, anywhere in the world.


Advanced English Dictionary includes high-quality audio pronunciations in American, British, and Australian English, with both male and female voices.


More than 335,000 semantic relations between definitions. Advanced English Dictionary shows how every word is linked to another.

Sample usages

Sample sentences show you how to use the words in your own speaking and writing.


Advanced English Dictionary includes a unique conceptual thesaurus with word links.


Includes biographical and geographical data, technical and scientific terms, idioms, prepositions, conjunctions, determiners, interjections, abbreviations, contractions, common misspellings, irregular forms and even Old English words.


Clear and precise definitions are available for use as references. The content was developed by the Cognitive Science Laboratory at Princeton University.


Advanced English Dictionary features a user-friendly web-browser-like interface, allowing you to quickly access the information you need without the need for extensive manuals.

“Advanced English Dictionary & Thesaurus rises above the rest with a good interface, fast speed, and a unique way of looking up words. […] Recommended for anyone needing a dictionary and thesaurus on the go.”
“This is no ordinary dictionary. In addition to being an almost infinite resource of words and what they mean, it also educates users as to how words are linked. […] It’s a new take on an old, but incredibly useful concept and one that will no doubt gain many fans.”
Clare Hopping, Know Your Mobile
“Its superior biographical and geographical data and its pleasing interface gives Advanced English Dictionary the edge.”
Sam Felsing, Macworld
“For exploring the language, it has the edge, the upper hand, the whip hand, etc.”
Tony Smith,
“This is a sleek dictionary with a cool "word links" feature that briefly describes the history around that word. It's easy to use and I love the pronunciation guide for those more esoteric words.”