Free online English dictionary, online Roget's thesaurus and reference guide, crossword puzzles and other word games, online language translator and Word of the Day.

Today, Merriam-Webster is America's most trusted authority on the English language. Use the online English dictionary and online thesaurus from the official Webster language center.

The American Heritage Dictionary of the English Language, Fourth Edition. 2000Free online access to the Columbia Encyclopedia, Roget's Thesaurus and quotation collections.

Introducing the most extensive pocket-size American Sign Language dictionary ever published. Included are more than 2,500 of the most widely used words, phrases and idioms in the language, with easy-to-follow illustrations of the hand, arm and facial movements that express each one.

Search for a word or term in an online Internet dictionary or glossary. Free search access to a frequently updated database of words, terms, names, acronyms vs Internet links to online dictionaries and glossaries.

A unique reference resource offering comprehensive word and phrase definitions.

Translations for Americans of British English words.

Dictionary Search gives you access to more than 125,000 entries, from aalii to zymurgy.

Good communication starts with choosing the right word--not always an easy task when the choise is between words of closely related meaning. Merriam-Webster's Dictionary of Synonyms makes the task easier by providing full discussions of synonymous terms and by describing the subtle distinctions that make one word more appropriate than another in a particular context.

Originally published in 1960, the Dictionary of American Slang is widely regarded as the standard in its field. Like previous editions, this edition features pronunciation guides, word origins, examples of appropriate usage as well as a helpful highlighting system that lets you know which terms should be used with caution, and never in polite company.

Ever know the definition -- know what you `mean' -- but cannot put your finger on the word? The Flip Dictionary is going to help you in many of these instances.

The web's most comprehensive and authoritative language portal with more than 1800 dictionaries in more than 230 languages! Multi-lingual online dictionaries, thesaurus, free online language translator, speciality dictionaries, and more.

The American-British / British-American Dictionary (for English Speaking People). The definitive American-British translation guide, includes links to all other sources.