Dictionaries

· http://www.wordreference.com/

· http://dictionary.reference.com/

· http://dictionary.cambridge.org/es/

· http://oald8.oxfordlearnersdictionaries.com/

· http://www.thefreedictionary.com/English

· http://www.collinsdictionary.com/

DICTIONARIES FOR CHILDREN

· http://www.wordsmyth.net/

· http://www.oxforddictionaries.com/words/for-children-and-schools

·  http://dictionary.kids.net.au/