Dictionary is a term, which is used to refer to a source of information, where you search for the, meaning of a particular word. Wiki says…

A dictionary, also known as a lexicon, is a book of alphabetically listed words in a specific language, with definitions, etymologies, pronunciations, and other information, or a book of alphabetically listed words in one language with their equivalents in another.

There are numerous online resources on the Internet for which help you to search the definition of words, but recently a community driven online dictionary has been launched, which is expanding very fast and already contains 4,486,795 definitions and counting.

Welcome to Lingoz.

LingoZ is an online community dedicated to the building of the world’s largest dictionary, and providing a community resource for language questions. LingoZ is a service by Babylon.com, the world’s leading provider of translation software. We bring to you Babylon’s dictionaries with millions of definitions and translations as starting point, and we invite you to jump in and contribute your knowledge in variety of forms, as you deem right: