The web doesn't work as a dictionary, but as a full lexicon that analyzes the conceptual development of Tolkien's languages through his lifetime. Therefore the invented languages are divided by three periods: Early (1910-1930), Middle (1930-1950) and Late (1950-1973). All references to the sources are given, specially the History of Middle-earth, Vinyar Tengwar and Parma Eldalamberon.
Currently is being developed a detailed index on Quenya Grammar. Separately, a complete lexicon of Neo-Elvish is given, including all the vocabulary created by Helge Fauskanger for his New Testament in Neo-Quenya, or by the Parma Penyanë Quettaron, among others.