Multilingual Dictionaries
Foreignword.com
http://www.foreignword.com/Tools/dictsrch.htm
Lang to Lang
http://www.langtolang.com/
Logos
http://fulgione.tripod.com/transl.htm
Majstro Translation Dictionary
http://www.majstro.com/Web/Majstro/sdict.php

Afrikaans-English/English-Afrikaans
Freedict.com
http://www.freedict.com/onldict/afr.html
Travlang's Translating Dictionaries
http://dictionaries.travlang.com/EnglishAfrikaans/

Albanian-English/English-Albanian
Albi Qeli, MD's English - Albanian, Albanian - English Online Dictionary
http://www.argjiro.net/fjalor/
Ectaco Online Dictionaries
http://www.ectaco.com/online/diction.php3?lang=16

Amharic-English/English-Amharic
AmharicDictionary.com
http://www.amharicdictionary.com/

Arabic-English/English-Arabic
Al-Buraq
http://www.alburaq.net/dictionary/transform.cfm
Ectaco Online Dictionaries
http://www.ectaco.com/online/diction.php3?lang=3
LingvoSoft Online Dictionaries
http://www.lingvozone.com/LingvoSoft-Online-English-Arabic-Dictionary
Sakhr Dictionary
http://dictionary.sakhr.com/

Armenian-English/English-Armenian
English Armenian Dictionary
http://www.masis.am/test/dic/

Azeri-English/English-Azeri
LingvoSoft Online Dictionaries
http://www.lingvozone.com/LingvoSoft-Online-English-Azeri-Dictionary

Basque-English/English-Basque
Morris Student Plus Dictionary
http://www1.euskadi.net/morris/dictionary.htm

Belorussian-English/English-Belorussian
Slovnyk.org
http://www.slovnyk.org/fcgi-bin/dic.fcgi?hn=sel&en-us&il=&ol=be&iw=

Bengali-English/English-Bengali
Virtual Bangladesh
http://www.virtualbangladesh.com/dictionary.php (English-Bengali)

Breton-English/English-Breton
Dicts.info
http://www.dicts.info/2/breton-english.php

Bulgarian-English/English-Bulgarian
Ectaco Online Dictionaries
http://www.ectaco.com/online/diction.php3?lang=2
InterActive Terminology for Europe
http://iate.europa.eu/
KBE Bulgarian English Dictionary
http://kbedic.sourceforge.net/online/index_en.html
LingvoSoft Online Dictionaries
http://www.lingvozone.com/LingvoSoft-Online-English-Bulgarian-Dictionary
newObjects
http://www.newobjects.com/dict.asp
Portal.bg
http://portal.bg/dict/
SA Dictionary
http://sa.dir.bg/
Slovnyk.org
http://www.slovnyk.org/fcgi-bin/dic.fcgi?hn=sel&en-us&il=&ol=bg&iw=

Catalan-English/English-Catalan
Dacco - Diccionari Anglès-Català de Codi Obert
http://www.ibiblio.org/dacco/dict/engcat/catSpeakers/full/main.htm
Diccionaris.net
http://www.diccionaris.net/

Cherokee-English/English-Cherokee
Cherokee Nation
http://www.wehali.com/tsalagi/index.cfm

Cheyenne-English/English-Cheyenne
Cheyenne <=> English Online Dictionary
http://hammer.prohosting.com/~cheydic/

Chinese-English/English-Chinese
Arch Chinese English-Chinese Dictionary
http://www.archchinese.com/arch_animation.html?find=English%20Chinese%20dictionary
Cari.com.my (Mandarin Chinese as spoken in Malaysia)
http://search.cari.com.my/dictionary/
Chinese-Tools.com (Simplified Chinese)
http://www.chinese-tools.com/tools/dictionary.html
City University of Hong Kong Chinese-English Dictionary of Modern Usage (Traditional Chinese)
http://humanum.arts.cuhk.edu.hk/Lexis/Lindict/
Clevertranslate.com
http://www.clevertranslate.com/dict/translate.do
Collins Chinese-English/English Chinese Reverso Dictionary
http://dictionary.reverso.net/chinese-english/
Dict.cn
http://us.dict.cn/
Dictionaryhk.com
http://www.dictionaryhk.com/
JCtrans
http://www.jctrans.com/tool/Chinese-English.asp
Lexiconer.com
http://www.lexiconer.com/ecresult.php (English-Simplified Chinese)
http://www.lexiconer.com/ceresult.php (Simplified Chinese-English)
http://www.lexiconer.com/ecbig5.php (English-Traditional Chinese)
http://www.lexiconer.com/cebig5.php (Traditional Chinese-English)
MDBG Chinese-English Dictionary
http://www.mdbg.net/chindict/chindict.php
nciku Online English-Chinese Dictionary
http://www.nciku.com/
Pristine Lexicon, Taipei
http://www.pristine.com.tw/resources/lexicon.php
Tigernt.com
http://www.tigernt.com/dict.shtml (English-Chinese)
http://www.tigernt.com/cedict.shtml (Chinese-English)
Websaru
http://www.websaru.com/
WordMind.com
http://cn.wordmind.com/
Xiaoma Cidian Chinese/English Dictionary
http://hmarty.free.fr/hanzi/
Yahoo! Hong Kong Chinese-English Dictionary (Traditional Chinese)
http://hk.dictionary.yahoo.com/
Zhongwen.com
http://zhongwen.com/m/hello.htm

Czech-English/English-Czech
Ectaco Online Dictionaries
http://www.ectaco.com/online/diction.php3?lang=4
GNU/FDL English-Czech Dictionary
http://www.wordbook.cz/slovnik.php?fjazyk=en
InterActive Terminology for Europe
http://iate.europa.eu/
Moravia Worldwide Dictionary
http://www.moravia-it.com/dictionary/
Seznam.cz, a.s.
http://slovnik.seznam.cz/
Slovnik.cz
http://www.slovnik.cz/
Slovnyk.org
http://www.slovnyk.org/fcgi-bin/dic.fcgi?hn=sel&en-us&il=&ol=cs&iw=

Danish-English/English-Danish
Freedict.com
http://www.freedict.com/onldict/dan.html
InterActive Terminology for Europe
http://iate.europa.eu/

Dutch-English/English-Dutch
Ectaco Online Dictionaries
http://www.ectaco.com/online/diction.php3?lang=23
Financial Dictionary FiDict.com (Financial Terms)
http://fidict.com/
Freedict.com
http://www.freedict.com/onldict/dut.html
InterActive Terminology for Europe
http://iate.europa.eu/
Kordut.be
http://www.kordut.be/wordsearch1.php
WordReference.com
http://www.allwords.com/ (Dutch-English only)

Estonian-English/English-Estonian
Aare Vesi
http://aare.pri.ee/dictionary.html?switch=en (English-Estonian)
http://aare.pri.ee/dictionary.html (Estonian-English)
Institute of Baltic Studies (IBS)
http://www.ibs.ee/dict/index.html
InterActive Terminology for Europe
http://iate.europa.eu/
Slovnyk.org
http://www.slovnyk.org/fcgi-bin/dic.fcgi?hn=sel&en-us&il=&ol=et&iw=

Faroese-English/English-Faroese
Tim W. Talpas' Faroese/English Dictionary
http://www.zece.com/faroese/

Fijian-English/English-Fijian
John Correll
http://fijidictionary.tripod.com/eng_fijian_dict.html (English-Fijian)
http://fijidictionary.tripod.com/fijian_eng_dict.html (Fijian-English)

Finnish-English/English-Finnish
FinnPlace
http://www.tracetech.net/sanat/
Freedict.com
http://www.freedict.com/onldict/fin.html
InterActive Terminology for Europe
http://iate.europa.eu/
Mediascape
http://efe.scape.net/

French-English/English-French
CNRS
http://dico.isc.cnrs.fr/dico_html/fr/index_tr.html
Collins English-French/French-English Reverso Dictionary
http://dictionary.reverso.net/french-english/
InterActive Terminology for Europe
http://iate.europa.eu/
Office québéois de la langue française - Le grand dictionnaire terminologique
http://www.granddictionnaire.com
Ultralingua web
http://www.ultralingua.net/index.html
WordReference.com
http://www.wordreference.com/enfr/ (English-French)
http://www.wordreference.com/fren/ (French-English)

Frisian-English/English-Frisian
Travlang's Frisian-English On-line Dictionary
http://dictionaries.travlang.com/FrisianEnglish/

Gaelic-English/English-Gaelic
Gramadach Lexicon (simultaneously searches MacBain's Scottish Gaelic, MacFarlane's Scottish Gaelic, Kelly's Manx Gaelic and Gramadach Irish Gaelic Lexicon)
http://www.ceantar.org/Dicts/search.html
InterActive Terminology for Europe
http://iate.europa.eu/

German-English/English-German
Berlin Lexikon
http://www.inf.fu-berlin.de/cgi-bin/trans-www
DICT.CC Online Translation Service
http://www.dict.cc/
English Grammar Online 4U German ↔ English Dictionary
http://www.ego4u.com/en/dictionary
Foreign Language Master (FLM)
http://dictionary.ibes.org/java/eng/main.html
InterActive Terminology for Europe
http://iate.europa.eu/
LEO Dictionary
http://dict.leo.org/
Linguadict
http://www.linguatec.net/online/dict/en/index.html
Maschler German-English Online Dictionary
http://www.ex.ac.uk/german/dict/
Pons Dictionary
http://www.sin-ponsline.de/cgi-bin/wb/wb.pl
QuickDic
http://quickdic.org/index_e.html
Rüdiger Werner's New English-German Dictionary
http://www.iee.et.tu-dresden.de/cgi-bin/cgiwrap/wernerr/search.sh
Student-online
http://www.student-online.net/woerterbuch.shtml (German-English only)
Technisches Wörterbuch Englisch-Deutsch Deutsch-Englisch
http://www.e-woerterbuch.de/
TU Chemnitz
http://dict.tu-chemnitz.de/dings.cg
Uni. Leipzig
http://dict.uni-leipzig.de/
Wolfram Schneider English-German dictionary
http://wolfram.schneider.org/dict/dict.cgi?plang=en
ALLwords.com
http://www.allwords.com/ (English-German only)
Biblioteks-Glossar
http://www.cyboerg.de/glossar/index1.htm (technical dictionary)

Hausa-English/English-Hausa
On-line Bargery's Hausa-English Dictionary
http://maguzawa.dyndns.ws/
University of Vienna Hausa-Boko-German-English Dictionary
http://www.univie.ac.at/Hausa/KamusTDC/CD-ROMHausa/KamusTDC/Arbeit2.html

Hawaiian-English/English-Hawaiian
Mo'o and Lolo's Hawaiian dictionary
http://www.hisurf.com/hawaiian/dictionary.html
Ulukau Hawaiian Electronic Library
http://wehewehe.org/gsdl2.5/cgi-bin/hdict

Hindi-English/English-Hindi
Glossword
http://glossword.info/list/85/index.xhtml
Shabdkosh.com English-Hindi Dictionary
http://www.shabdkosh.com/
Word Anywhere
http://www.wordanywhere.com/ (phonetic translation)

Hungarian-English/English-Hungarian
Computer and Automation Research Institute of the Hungarian Academy of Sciences (MTA SZTAKI)
http://dict.sztaki.hu/english-hungarian (English-Hungarian)
http://dict.sztaki.hu/hungarian-english (Hungarian-English)
Ectaco Online Dictionaries
http://www.ectaco.com/online/diction.php3?lang=14
Freedict.com
http://www.freedict.com/onldict/hun.html
InterActive Terminology for Europe
http://iate.europa.eu/
Keresés az angol-magyar és magyar-angol szótárban
http://www.cab.u-szeged.hu/cgi-bin/szotar
Medios English Hungarian, Hungarian English Dictionary
http://consulting.medios.fi/dictionary/
MoBiDictionary
http://www.mobidictionary.com/scripts/mobiweb.exe
Transylvania.info
http://www.transylvania.info/Dictionary/dictionary.php

Indonesian-English/English-Indonesian
Freedict.com
http://www.freedict.com/onldict/ind.html
Kamus Elektronik Bahasa Indonesia (KEBI) / Indonesian Electronic Dictionary
http://nlp.aia.bppt.go.id/kebi/index.php
Kamus.net/PT Kemangnet Perkasa
http://www.kamus.net/dashboard.asp

Ingush-English/English-Ingush
Johanna Nichols' Ingush Lexical Database
http://ingush.berkeley.edu:7012/cgi-bin/search.pl?copyright=agree;lang=Ingush

Inuktitut-English/English Inuktitut
Nunavut Department of Culture, Language, Elders & Youth Inuktitut Living Dictionary
http://www.livingdictionary.com/

IñupiaQ-English/English-IñupiaQ
Iñupiat Eskimo Dictionary, Summer Institute of Linguistics, Inc., Fairbanks, Alaska
http://www.alaskool.org/Language/dictionaries/inupiaq/dictionary.htm

Irish Gaelic-English/English-Irish Gaelic
Irish Dictionary Online Ltd.
http://www.englishirishdictionary.com/

Italian-English/English-Italian
Ectaco Online Dictionaries
http://www.ectaco.com/online/diction.php3?lang=6
Collins Italian-English/English-Italian Reverso Dictionary
http://dictionary.reverso.net/italian-english/
Garzanti Linguistica (requires registration)
http://www.garzantilinguistica.it/
InterActive Terminology for Europe
http://iate.europa.eu/
Sapere.it
http://www.sapere.it/gr/DictionarySearchServlet?DS_action=ForeignSearch&DS_userInput=
WordReference.com
http://www.wordreference.com/enit/ (English-Italian)
http://www.wordreference.com/iten/ (Italian-English)
ALLwords.com
http://www.allwords.com/ (English-Italian only)

Polish-English/English-Polish
Akson English-Polish Dictionary
http://akson.sgh.waw.pl/~anthon/slownik.html
Ectaco Online Dictionaries
http://www.ectaco.com/online/diction.php3?lang=7
Leksyka.pl
http://www.leksyka.pl/
InterActive Terminology for Europe
http://iate.europa.eu/
Medland (English-Polish-English Medical Dictionary)
http://www.bioling.com/en/slownik.php?s=en
Slovnyk.org
http://www.slovnyk.org/fcgi-bin/dic.fcgi?hn=sel&en-us&il=&ol=pl&iw= 
Słownik chemiczny (Polish-English-Polish chemical dictionary with 15,000 terms)
http://www.serwistlumacza.com/texts/slowchem.html

Portuguese-English/English-Portuguese
Collins Portuguese-English/English-Portuguese Reverso Dictionary
http://dictionary.reverso.net/portuguese-english/
Ectaco Online Dictionaries
http://www.ectaco.com/online/diction.php3?lang=8
Freedict.com
http://www.freedict.com/onldict/por.html
InterActive Terminology for Europe
http://iate.europa.eu/

Punjabi-English/English-Punjabi
PunjabiOnline.com
http://www.punjabonline.com/servlet/library.dictionary?Action=English

Romanian-English/English-Romanian
Cuvant Dictionar-Dictionary-Woerterbuch
http://www.cuvant.ro/dict_gen.html
Diseara Dictionar Roman-Englez-Roman
http://www.diseara.ro/templates/der.php3 (English-Romanian)
http://www.diseara.ro/templates/dre.php3 (Romanian-English)
Ectaco Online Dictionaries
http://www.ectaco.com/online/diction.php3?lang=9
Industrial Soft, Montreal
http://www.dictionare.com/english/dictionaries1.htm
InterActive Terminology for Europe
http://iate.europa.eu/
Transylvania.info
http://www.transylvania.info/Dictionary/dictionary.php

Spanish-English/English-Spanish
ALLwords.com
http://www.allwords.com/ (English-Spanish only)
Collins Spanish-English/English-Spanish Reverso Dictionary
http://dictionary.reverso.net/spanish-english/
Dicconarios.com/Spes Editorial, S.L.
http://www.diccionarios.com/
Dicti.com, Miami, FL (Central American and Cuban Spanish)
http://spanishdict.com/
English-Spanish Language Resources for Library and Information Professionals
http://eubd1.ugr.es/tony/risweb.isa
Eurodicautom - The European Commission's multilingual term bank
http://iate.europa.eu/
Foreignword.com's Business English-Spanish Glossary
http://www.foreignword.com/dictionary/business/
Gleb Beliakov and Anibal Monsalve Salazar's English-Spanish Dictionary
http://www.v7w.com/es/
Glosario de Terminología Informática - Glossary of Computer Science Terminology (English-Spanish)
http://www.tugurium.com/gti/
Go Madrid Spanish Food Dictionary & Glossary
http://www.gomadrid.com/dict/spanish-food-dictionary.html
InterActive Terminology for Europe
http://iate.europa.eu/
Tomísimo Spanish English Dictionary
http://www.tomisimo.org/
WordReference.com
http://www.wordreference.com/es/ (English-Spanish)
http://www.wordreference.com/es/en/translation.asp (Spanish-English)

Sranan-English/English-Sranan
Languages of Suriname Sranan-English Dictionary
http://www.sil.org/americas/suriname/Sranan/English/SrananEngDictIndex.html

Swahili-English/English-Swahili
Freedict.com
http://www.freedict.com/onldict/swa.html
Kamusi Project Internet Living Swahili Dictionary
http://www.cis.yale.edu/swahili/
Sarah Hillewaert and Gilles-Maurice de Schryver's Kiswahili (Swahili) - English Dictionary
http://africanlanguages.com/kdp/

Swedish-English/English-Swedish
Ectaco Online Dictionaries
http://www.ectaco.com/online/diction.php3?lang=21
EU Dict
http://www.eudict.com/?lang=engswe
Freedict.com
http://www.freedict.com/onldict/swe.html
Glossword
http://glossword.info/list/84/index.xhtml
InterActive Terminology for Europe
http://iate.europa.eu/
The Swedish Schoolnet (Swedish National Agency for School Improvement)
http://www-lexikon.nada.kth.se/skolverket/swe-eng.shtml
English-Finnish-Swedish Mathematics Dictionary
http://www.csc.fi/cgi-bin/math-words

Taiwanese-English/English-Taiwanese
Taiwanese Dictionary
http://www.daiwanway.dynip.com/cgi/tdict.acgi

Tagalog-English/English-Tagalog
Foreignword.com
http://www.foreignword.com/dictionary/Tagalog/
Dr. Teresita V. Ramos' Large Tagalog Dictionary
http://www.seasite.niu.edu/tagalog/large_tagalog_dictionary.htm (Tagalog-English)
Tagalog Dictionary, Manila, Philippines
http://www.tagalog-dictionary.com/

Tamil-English/English-Tamil
Online Tamil Lexicon at University of Cologne
http://www.ee.vt.edu/~anbumani/tamildict/

Telegu-English/English-Telegu
Charles Philip Brown's English-Telugu Dictionary (Reprint of 1853 edition)
http://www.aksharamala.com/telugu/e2t/

Thai-English/English-Thai
4M System English-Thai Dictionary Online
http://www.4m.se/
Clevertranslate.com
http://www.clevertranslate.com/dict/translate.do
Lexitron
http://lexitron.nectec.or.th/
Thai2English.com
http://www.thai2english.com/
Thai Internet Education Project
http://seasrc.th.net/ehelp/base.htm
Thai-language.com
http://www.thai-language.com/dict/

Tibetan-English/English-Tibetan
English to Tibetan Online Dictionary (English-Tibetan)
http://eng-tib.zanwat.org/
Nitartha Online Tibetan-English Dictionary (Tibetan-English)
http://www.nitartha.org/cgi-bin/find
Tibetan-English Dictionary of Buddhist Teaching and Practice
http://www.diamondway-buddhism.org/diction/diction.htm

Tongan-English/English-Tongan
English/Tongan Translator
http://www.freeasphost.co.uk/weeklypicks/dict/search.asp

Turkish-English/English-Turkish
Ectaco Online Dictionaries
http://www.ectaco.com/online/diction.php3?lang=1
Hazar.com
http://www.hazar.com/
Online English-Turkish Dictionary of Computer Terms
http://www.kadifeli.com/cgi-bin/compdict.pl
Seslisozluk.com
http://www.seslisozluk.com/
Turkish Dictionary
http://www.turkishdictionary.net/

Vietnamese-English/English-Vietnamese
Clevertranslate.com
http://www.clevertranslate.com/dict/translate.do
Dac Trung Tu Dien
http://dactrung.net/tudien/Default.aspx
Free Vietnamese Dictionary Project, Uni Leipzig
http://www.saigon.com/~vietdict/index.html
KSVN, San Jose, California
http://www.ksvn.com/anhviet_new.htm
Vdict Vietnamese English French Online Dictionaries
http://vdict.com/

Zulu-English/English-Zulu
isiZulu.net Zulu-English/English-Zulu online dictionary
http://isizulu.net/

Other resources

Glossaries List
http://www.lai.com/glossaries.html
Online Translator
http://www.systranbox.com/systran/box