A free encyclopedia with millions of articles contributed collaboratively using Wiki software, in dozens of languages.
Dictionary.com is the world’s leading online source for English definitions, synonyms, word origins, audio pronunciations, example sentences, slang phrases, …
WikiAnswers: Questions and Answers from the Community
A veritable cornucopia of streetwise lingo, posted and defined by its readers.
Thesaurus.com – the largest and most trusted free online thesaurus brought to you by Dictionary.com. Quickly find synonyms and antonyms.
Online Dictionary – Multiple dictionaries including: English dictionary, medical dictionary, legal dictionary, financial dictionary, computer dictionary, thesaurus, dictionary of acronyms and abbreviations, dictionary of idioms, thesaurus, Columbia encyclopedia, Wikipedia encyclopedia, examples from classic literature, pronunciations, word browser, glossary. Free access
Reference.com – a free online encyclopedia and information reference. Research articles from Columbia Encyclopedia and Encyclopedia Britannica.
The most trustworthy dictionary and thesaurus of American English, word games, trending words, Word of the Day, Words at Play blog,
Collaborative project for creating a free lexical database in every language, complete with meanings, etymologies, and pronunciations.
Free online dictionaries – Spanish, French, Italian, German and more. Conjugations, audio pronunciations and forums for your questions.
Vocabulary.com helps you learn new words, play games that improve your vocabulary, and explore language.
Free online english dictionary from Oxford Dictionaries. Translate from English to Spanish, French, Italian, and German with bilingual dictionaries.
The Free Online English Dictionary from Macmillan Publishers.
The easy to understand dictionary with example sentences, famous quotes and audio pronunciations. Includes: thesaurus, computer dictionary, investment
ScienceDirect is the world’s leading source for scientific, technical, and medical research. Explore journals, books and articles.
Explore the updated online encyclopedia from Encyclopaedia Britannica with hundreds of thousands of articles, biographies, videos, images, and Web sites.
Online reference and tools – calculators, converters, math, electricity, web design.
Metric Conversion calculators, tables and formulas for temperature, length, area, volume and weight metric conversions.
The official online dictionary from Collins with over 1 million entries. View word definitions, translations and examples. Check spelling, grammar and
Search translations in the dictionary and have fun learning languages with vocabulary lessons and many free games and quizzes.
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