Monolingual dictionaries:
www.onelook.com: dictionary search engine, with hundreds of general and specialized
(including business) English dictionaries and glossaries in its database (for the business dictionaries:
http://www.onelook.com/?d=all_bus). Enter a word, look at the quick definitions and then click on
any link to go to a particular dictionary’s website.
http://dictionary.cambridge.org/: online versions of several Cambridge dictionaries, very
thorough (is this noun countable or uncountable? Is this verb transitive or intransitive? What
preposition should I use after this noun, verb or adjective?), with useful example sentences and with
American English and British English audio pronunciations and phonetic keys.
http://oxforddictionaries.com/
http://www.merriam-webster.com/
http://dictionary.reference.com/: noteworthy because you can download a free, offline
application for your smartphone and/or tablet computer.
http://www.thefreedictionary.com/dictionary.htm: another very useful dictionary, with a
thesaurus (for synonyms, antonyms, etc.), includes a legal and a business dictionary, as well as an
idiom dictionary.
Business dictionaries:
http://dictionary.cambridge.org/dictionary/business-english/
http://www.businessdictionary.com/
http://www.finance-glossary.com/
http://lexicon.ft.com/ Financial Times Lexicon.
http://www.nytimes.com/library/financial/glossary/bfglosa.htm: financial glossary
http://www.investopedia.com/dictionary/: economic and financial dictionary
Bilingual dictionaries:
http://www.wordreference.com/: excellent website (some mistakes occur though so be
careful), with forums to ask native speakers for their help (and where you can help English speakers
with their French).
http://www.linguee.fr/: translations extracted from outside websites, including European
institutions.
!! sentences quoted are often but not always quite correct, some of them can even be incredibly
wrong, so be careful !!
http://dictionnaire.reverso.net/: based on the Collins dictionary. They also have a French to
English / English to French business dictionary.
http://www.mediadico.com/dictionnaire/: also with a French dictionary and French
conjugations.
http://www.larousse.fr/dictionnaires: also has a French dictionary.
Want to check your pronunciation?
www.dictionary.cambridge.org: US & UK pronunciations via audio files
http://www.howjsay.com: a free online Talking Dictionary of English Pronunciation
You can find plugins for most of these dictionaries, allowing you to set up a quick search box
in the top right-hand search bar of your browser. Go to the Mycroft Project
(http://mycroft.mozdev.org/) to find plugins for Internet Explorer, Mozilla Firefox and Google
Chrome.
Finally you can find apps for most of these dictionaries on smartphones, as well as on tablet
computers. Among free applications: Wordreference, Merriam-Webster (both need an Internet
connection), and dictionary.com (full database available offline).
French-language general dictionaries.
To master the English language, you need first to make sure you master French, its conjugation and
vocabulary (how is it possible to translate a word from French to English if you don’t understand the
French meaning of that word?)
http://www.cnrtl.fr/definition/: best online French dictionary, with synonyms, antonyms,
etymology, etc.
www.larousse.fr: another good online French dictionary, with synonyms, antonyms, audio
pronunciation files, idiomatic expressions.
http://www.mediadico.com/dictionnaire/ Correcteur d’orthographe en ligne :
http://www.reverso.net/orthographe/correcteur-francais/ Conjugaison en ligne :
www.leconjugueur.com