WordWeb
One-click lookup in any almost any Windows program; Hundreds of thousands of definitions and synonyms; The latest international English words; Works offline, or reference to Wikipedia and web references.
16 Alternatives To WordWeb
Longman English Dictionary Online
The Longman Dictionary of Contemporary English Online is an online version of the CD-ROM of the…
Merriam-Webster
No other dictionary matches M-W’s accuracy and scholarship in defining word meanings. Our pronunciation help, synonyms, usage and grammar tips set the standard.
Power Thesaurus
Power Thesaurus is a fast, comprehensive and easy-to-follow online thesaurus for writers…
TemaTres
TemaTres is a Controlled Vocabulary server. Manage, publish, share use and re-use Ontologies, taxonomies, thesauri, list of values. The open source way to manage formal representations of knowledge