Here’s a list of my favourite online dictionaries & thesaurus. They will be of great help while you are studying English online and writing and doing tasks. Check them out by clicking on the links.



Dictionaries
- Dictionary.com (My favourite one. It is considered the largest free online dictionary and you can also check out the audio pronunciation feature)
- Cambridge Dictionaries Online (good for students and it also includes a phrasal verb & idiom dictionary)
- alphaDictionary (This one has a lot of features free English dictionary, grammars for 350 languages, crossword puzzles, word games, language jokes, and the “Word of the Day” kinda thing! worth checking)
- The American Heritage Dictionary of the English Language (good for teachers and students as well. Some things you might like are audio pronunciation features, illustrations and word-root appendixes)
- Infoplease (Another free dictionary with encyclopedia, almanac, atlas, dictionary and much more)
- AllWords.com (English dictionary with multi-lingual search – French, Spanish, German – as well as links for word lovers and crosswords)
- Urban Dictionary (by far my favourite one – click here and check out why)
- The Compact Oxford English Dictionary (Oxford always has the best dictionaries and this one is not different. Thus, you can check out the writing tips)
- Fact Monster (A good free reference site for students, teachers, and parents. It includes other things such as sports, science & math)
- Webster’s Online Dictionary (This one claims to be Earth’s largest dictionary with 90 modern and 10 ancestral languages. Plus, word of the day, hour & minute)
- Rhyme Zone (This one is not only a dictionary and thesaurus but also a thesaurus and it includes the functions of a rhyming dictionary & spelling checker. How cool is that?)
- Wiktionary (Wiki dictionary from the Wikimedia Foundation – more of a complement to Wikipedia)
- Ultralingua Online Dictionary (What I like about this one is the fact that you can download it to your Iphone, laptop, etc.)
Thesaurus
- Thesaurus.com (It is claimed to be the largest free online thesaurus including antonyms)
- Roget’s II: The New Thesaurus (Contains more than 5000 synonyms and over 250000 cross-references. Thus, an alphabetical Index list)
- Aiksaurus (not one of my favourites but still somehow useful)
- Merriam-Webster Online (both dictionary and thesaurus)
- yourDictionary.com ( Another free online dictionary/thesaurus that offers definition search from Webster’s dictionary for word meanings and thesaurus. It also has forums and language articles, not mention brain games)
- Dictionary – MSN Encarta (It’s a dictionary, thesaurus and also contains a translation section. To my view, it is very limited)
- TheFreeDictionary (What I really like about this one here is the fact that you can create your own homepage by adding or removing things such as quotes, words, weather, etc)
- Wordsmyth (The only turn off of this one is that you’ve got to create an account)
- WordWeb (downloadable dictionary and thesaurus. Can be used offline. Pretty good)
The last dictionary/thesaurus I want to mention is actually my favorite one among all of the other ones I have talked about. It is called VisuWords. It is a graphical dictionary and thesaurus that uses word webs to find meanings and associations with other ideas and concepts. Here’s an example with the word “plausible”



This blog’s great!! Thanks
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I always find the visual ones confusing, but that’s learning styles for you! Another way is just to google “definition of…” or “define…” and see what comes up
I think the comment above is spam, although I certainly agree with what he says!
http://www.tefl.net/alexcase