WordNet® is a large lexical database of English with up to 140,000 entries and more than 1.4 million words, developed by the Cognitive Science Laboratory at Princeton University.

Lingua.ly - learn new vocab
Learn a language while you browse the web.
Study French, English, Spanish, Russian, Arabic, Hebrew and more, as you read articles on your mobile device and tap on words you don’t know. Lingua.ly’s smart dictionary gives you translations for vocabulary you would like to learn. The app creates personalized games and flashcards to help you remember your new vocab. A fun, free and seamless way to learn a language.

Collins Mini Gem Greek-Finnish & Finnish-Greek Dictionary is an up-to-date, easy-reference dictionary, ideal for learners of Greek and Finnish of all ages. The dictionary covers about 10,000 words from each language with Collins pre-recorded audio pronunciation for each word.

Collins Mini Gem English-French & French-English Dictionary is an up-to-date, easy-reference dictionary, ideal for learners of French and English of all ages. The dictionary covers about 10,000 words from each language with Collins pre-recorded audio pronunciation for each word.