Free, online version of the Merriam-Webster English dictionary, with searchable dictionary definitions, thesaurus, and a student dictionary for kids. Also offers online subscription versions of Merriam-Webster's collegiate dictionary and the Encyclopedia

Dictionary search service that offers definitions from a variety of online English and foreign language dictionaries. Find the definition of a term, see terms that correspond to definition key words, or search for the correct spelling of a word.

Online dictionary service that includes a thesaurus, industry-specific terminology, crossword puzzle and Scrabble help, and translation tools.

Directory of online English dictionaries and thesauruses, translation dictionaries of 150 different languages, grammar help for 70 languages, and pages of linguistic fun.

English, Medical, Legal, Financial, and Computer Dictionaries, Thesaurus, Acronyms, Idioms, Encyclopedia, a Literature Reference Library, and a Search Engine all in one!