Spanish Online Language Dictionaries

  Spanish Translation Engines

Google Translate Tool - Translate text or a web page from Spanish to English, or English to Spanish, plus a number of other languages. Links in the page translated with the web page translator will also render in the new language.
Translated.net Online Translation Engine - Translation service with free online translations of text from Spanish to and from English, Chinese, French, German, Greek, Italian, Japanese, Korean, Portuguese, and Russian, with a large variety of technical and specialty lexical databases.
Dictionary.com Translation Engine - Translate text from Spanish to English and vice-versa, plus a number of other language combinations.
WorldLingo Free Online Translator - Translates text and sentences in Spanish to and from English, Chinese, Dutch, French, German, Greek, Italian, Japanese, Korean, Portuguese, and Russian. Also offers web page translation and email translation.
ProMT Online Translation Engine - Provides online translations for Spanish-English and English-Spanish, with a number of other language options; also displays back-translation of the translated text.

 

 

  Spanish Dictionaries

Diccionario de la Lengua Española - Searchable online version of the 23rd edition of the Diccionario de la lengua española, a comprehensive monolingual Spanish dictionary.
Diccionarios Académicos - Searchable online interface to the Diccionarios Académicos, a monolingual academic Spanish meta-dictionary that provides access to numerous famous dictionaries of the past (from 1726 to 1992) in graphics facsimile format.
Diccionarios.com - Translations, definitions, and phrasal verbs for Spanish to and from English, French, German, Catalan to and from Castilian; Spanish synonyms and antonyms.
American Heritage Spanish Dictionary, 2nd Edition - Bilingual Spanish-English dictionary featuring American English and Latin American Spanish; contains 70,000 entries, with more than 120,000 meanings.
SpanishDict.com - Spanish-English bilingual dictionary with 56,000 entries with over 10,000 audio pronunciations; plus word of the day.
Tomísimo - Bilingual Spanish-English Dictionary that makes finding words easy by automatically searching in both languages; with over 60,000 words.
LookWAYup Dictionary - Spanish-English dictionary, also includes English-Spanish; click "More" for thesaurus and synonyms; double-click a word in the definition to define it.
Word Reference Spanish-English Dictionary - Bilingual Spanish-English dictionary with downloadable translation toolbar.
UltraLingua Spanish-English and English-Spanish Dictionary - Spanish-English, English-Spanish, and many other foreign dictionaries, plus web page translations and downloadable translation toolbar.
LingvoSoft Spanish-English Online Dictionary - Bilingual Spanish-English dictionary; site also includes a multilingual dictionary with 25 languages.
Freedict Spanish-English and English-Spanish Dictionary - Simple word translations without additional information.
Ectaco Online Spanish-English Dictionary - Spanish-English bilingual dictionary; site also includes 21 other languages.
Dict.info Spanish Dictionaries - A collection of free Spanish bilingual dictionaries for English, Czech, Esperanto, French, German, Russian, Slovak, and Swedish. Browsable online, with word searches, and downloadable data files.
TriTrans - Translates words between Spanish, English and Norwegian.
myjmk.com German-Spanish Dictionary - Online searchable bilingual German-Spanish dictionary with large dataset (over 121,000 terms).
DIX: Deutsch-Spanisch Wörterbuch - Spanish-German bilingual dictionary
Pauker German-Spanish Dictionary - Online meta-dictionary search for German words and their Spanish equivalents.
Szotar Spanish-Hungarian Dictionary - Online bilingual Spanish-Hungarian dictionary; interface in Hungarian.
123teachme Spanish Medical Dictionary - HTML Spanish-English medical dictionary
Medical Spanish Dictionary - "Click on one of the above medical Spanish dictionaries to look up Spanish medical terminology. Translations include coloquial usage, and all terms inlcude audio."
List and Glossary of medical terms: Spanish - Online medical glossary for a number of languages

 

 

  Regional Dialects and Slang

Jergas de Habla Hispana - An extensive online dictionary of the Spanish slang of Spain and Latin America. Terms can be sorted by country of use, with words common through the Spanish-speaking world cross-referenced; also included are comparative examples of sentences, using the slang typical of each Hispanic country.
Diccionario Argentino-Español - HTML glossary of Argentinian Spanish.
Diccionario del Español usual en México - Online HTML glossary of Spanish terms as they are used in Mexico, compiled by Luis Fernando Lara.
Diccionario des Modismos - Searchable and browsable dictionary of Chilean Spanish idioms and words.

 

 

  Medical and Technical

Medical Spanish Dictionary - "Click on one of the above medical Spanish dictionaries to look up Spanish medical terminology. Translations include coloquial usage, and all terms inlcude audio."
Diccionario medico-biologico, historico y etimologico - Spanish dictionary of biological and medical terms, with historical background and etymology
123teachme Spanish Medical Dictionary - HTML Spanish-English medical dictionary
List and Glossary of medical terms: Spanish - Online medical glossary for a number of languages.
Andy Miles English-Spanish Business Dictionary - With over 6000 terms.
Comparative CyberLexicon - Compilation of English terminology peculiar to computer culture and technology and its equivalents in Spanish.