Diccionario Anaya de la Lengua Española

Dictionnaire de l'Académie Française (Università di Toronto)

Dictionnaires d'Autrefois (French Dictionaries of the 16th, 17th, 18th and 19th centuries)

DLPO: Dicionário da língua portuguesa

EDICTA: Early Dictionaries / Dictionnaires Anciens

Encyclopaedia Britannica

Hypertext Webster Interface

Laboratoire d'Analyse et de Technologie du Langage

Liddell-Scott Greek Lexicon

Linguistic Atlases Page

Merriam-Webster Online

OneLook Dictionaries

Oxford English Dictionary

Phonological Atlas of North America

Roget's Thesaurus (ARTFL Project)

The Jargon Dictionary

Thresor de la langue francoyse

YourDictionary.com: The Global Language Resource

Webster Search Form (ARTFL Project)

WordNet

Wordsmyth: The Educational Dictionary-Thesaurus