Borja Domínguez's List: English monolingual dictionaries

dictionary.cambridge.org dictionary english cambridge dictionaries reference language education

www.wordreference.com dictionary english dictionaries reference language

www.collinsdictionary.com dictionary english dictionaries reference language american british

www.oxforddictionaries.com/es dictionary english language reference dictionaries español

www.merriam-webster.com dictionary english language español dictionaries reference thesaurus education tools

dictionary.reference.com dictionary education english language español dictionaries thesaurus reference search tools

www.macmillandictionary.com dictionary english thesaurus macmillan resources dictionaries vocabulary reference

www.ldoceonline.com/ dictionary tools vocabulary dictionaries english longman reference language

www.thefreedictionary.com dictionary reference english thesaurus tools language encyclopedia

www.wordsmyth.net/ dictionary dictionaries vocabulary english reference thesaurus education language