Forvo is the largest pronunciation guide in the world. Ever wondered how a word is pronounced? Ask for that word or name, and another user will pronounce it for you. You can also help others recording your pronunciations in your own language.
WordNet is a large lexical database of English, developed under the direction of George A. Miller. Nouns, verbs, adjectives and adverbs are grouped into sets of cognitive synonyms (synsets), each expressing a distinct concept.
he Visual Thesaurus is an interactive dictionary and thesaurus with an innovative display that encourages exploration and learning. Multiple languages can be display in one cloud!