English Dictionaries and Thesauruses (online)

OED (Oxford English Dictionary Online), 1972-
Oxford Dictionary of English (2nd edition revised)

American Heritage Dictionary of the English Language

The Oxford American Dictionary of Current English
The Oxford American Thesaurus of Current English
Visual English Dictionary

Roget's II: The New Thesaurus
The Oxford Paperback Thesaurus

English Language Reference (online):

Word Histories and Mysteries
Word Origins
The Concise Oxford Dictionary of English Etymology

A New Dictionary of Eponyms
Chambers Dictionary of Eponyms
The American Heritage Abbreviations Dictionary

Dictionary of Foreign Phrases and Abbreviations, H.W. Wilson
The Oxford Essential Dictionary of Foreign Terms in English
The Browser's Dictionary of Foreign Words and Phrases

The Oxford Dictionary of English Grammar
Encyclopedia of Rhetoric

The Penguin Rhyming Dictionary
Oxford Dictionary of Rhymes

Dictionary of Languages
A Dictionary of Linguistics and Phonetics
International Encyclopedia of Linguistics

The Oxford Dictionary of American Usage and Style
The American Heritage Guide to Contemporary Usage and Style
How We Talk: American Regional English Today
Divided by a Common Language (British and American English compared)

Brewer's Dictionary of Modern Phrase and Fable
Brewer's Dictionary of Phrase and Fable, Millennium Edition

Dictionary of Contemporary Slang

Pocket Fowler's Modern English Usage

The American Heritage Dictionary of Idioms
The Oxford Dictionary of Idioms

The Oxford Dictionary of Proverbs

Rawson's Dictionary of Euphemisms and Other Doubletalk
Rawson's Wicked Words
The Bloomsbury Good Word Guide
The Devil's Dictionary

Foreign Languages and Bilingual Dictionaries (online):

Oxford Language Dictionaries Online: Chinese, French, German, Italian, Russian and Spanish.

This is a fully searchable, comprehensive bilingual dictionaries online resource. In addition to dictionaries, OLDO includes unique study materials on topics such as life & culture, grammar & vocabulary, and writing & word games.

 

French

Collins French Dictionary

The Concise Oxford-Hachette French Dictionary (English-French)

The Concise Oxford-Hachette French Dictionary (French-English)

 

German

Collins German Dictionary

The Concise Oxford-Duden German Dictionary (German-English)

The Concise Oxford-Duden German Dictionary (English-German)

 

Irish

Collins Irish Dictionary

Brewer's Dictionary of Irish Phrase and Fable

The Pocket Oxford Irish Dictionary (English-Irish)

The Pocket Oxford Irish Dictionary (Irish-English)

 

Italian

Collins Italian Dictionary

The Pocket Oxford Italian Dictionary (English-Italian)

The Pocket Oxford Italian Dictionary (Italian-English)

 

Latin

Collins Latin Dictionary

The Pocket Oxford Latin Dictionary (English-Latin)

The Pocket Oxford Latin Dictionary (Latin-English)

 

Spanish

Collins Spanish Dictionary

The Concise Oxford Spanish Dictionary (English-Spanish)

The Concise Oxford Spanish Dictionary (Spanish-English)

 

Portuguese

Collins Portuguese Dictionary

 

Welsh

The Pocket Modern Welsh Dictionary (English-Welsh)

The Pocket Modern Welsh Dictionary (Welsh-English)

in Print:

Arabic-English
PJ6640.S8

Aramaic: See Hebrew

Armenian-English/English-Armenian
PK8441.Y4

Cambodian-English/English-cambodian

PL4326.E4

Catalan-English/English-Catalan
PC329 1 .C38

Chinese-English/English-Chinese
PL1455.C69

Czech
PG4640.M6

Danish-English/English-Danish
PD3640.V481

Dutch-English/English Dutch
PF640.C375

English Dictionaries
PE1628

English Thesauri
PE1591

Finnish-English
PH279.W83

French-English/English-French
PC2640.O94

German-English/English-German
PF3640.C68

Greek-English/English-Greek
PAl139.E5.P77

Hebrew-English
PJ4833.09

Hindi: See Urdu

Hungarian-English/English-Hungarian
PH2640.067

Irish-English
PB1261.G74

Italian-English-Italian
PC1640.C33

Japanese-English
PL679.K388

Khmer: See Cambodian

Korean-English/English-Korean
PL937.E5.N48

Latin-English/English-Latin
PA2365.E5

Lithuanian-English
PG8679.A57

Norwegian-English
PD2691.B4

Persian-English
PK6379.A694

Polish-English/English-Polish
PG6640.K65

Portuguese-English/English-Portugese PC5333.M583

Romanian-English
PC779.P35

Russian-English/English-Russian
PG2640.K34

Serbo-Croatian
PG8679.A57

Spanish-English/English-Spanish
PC4640.R32

Swahili-English
PL8703.J66

Swedish-English
PD5640

Tibetan-English
PL3637.E5.G65

Turkish-English
PL191.R52

Urdu-Hindi-English
PK1986.P4

Vietnamese-English/English-Vietnamese PL4376.N359

Welsh-English
PB2191 .W45

Yiddish-English
PJ51 17.H28

Native American Dialects

Chickasaw
PM80 1 .Z5.M85

Choctaw
E51.U6 NO.46

Hopi
PM1 351.Z5.H66.

Navaho
PM2007.475