Dictionaries
!

OneLook Dictionaries
!
Type in a word and search many dictionaries at once. Also has a reverse dictionary and translations.

Cambridge Dictionaries Online - Cambridge University Press

!
Free online dictionary from Cambridge University Press.

Dictionary and Thesaurus - Merriam-Webster Online

!
Free online dictionary, thesaurus, spanish-english and medical dictionaries, audio pronunciations, Word of the Day, word games, and many more high-quality Merriam-Webster language resources.