Sort: Oldest first
 
2006 - WordNet 3.0
By Princeton University
 
2011 - English Dictionary Database
By DataStellar Co., Ltd
 
2010 - Medical Dictionary Database
By DataStellar Co., Ltd
 
1919 - The Winston Simplified Dictionary
By William Dodge Lewis, Edgar Arthur Singer
 
1919 - The Concise Standard Dictionary of the English Language
By James Champlin Fernald
 
1895 - Glossary of terms and phrases
By Henry Percy Smith