Everipedia
Free
Everipedia is the next generation online encyclopedia.
Merriam-Webster
Free
Merriam-Webster is an online dictionary.
dict.cc
Free
dict.cc is a free, multilingual online dictionary. The site's database can also be downloaded and used offline.
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Compare dict.cc and Reference.com and decide which is most suitable for you.
Compare Merriam-Webster and Reference.com and decide which is most suitable for you.