Lingue

Accademia della Crusca
A Dictionary of Slang
Biblit
Cambridge Dictionaries Online
Canoonet
Dictionary.com
Dizionario Etimologico Online
Double-Tongued Dicitonary
Ethnologue
Garzanti Linguistica
Glossari.it
HyperDictionary
I Love Languages
Lai Glossaries
 Languages Directory
Larousse
LEO
Lexicool
Lingo4you
Longman Dictionary of Contemporary English
Merriam-Webster
MundMische
Omniglot
Online Etymology Dictionary
Ostarrichi.org
Österreichisches Wörterbuch
Sitoteca
Slang Dictionary
Sprachnudel
Surfing for Slang
The DiaLinks Page
The Free Dictionary
Thesaurus.com
Treccani
Urban Diciotnary
WordReference
Your Dictionary