Linkify

Learn a foreign language with rocket speed with Linkify!
You can just click foreign words pulling out dictionary articles that include:
1)definitions (in English)
2)usage examples with translations to your native language
3)other useful information: etymology, synonyms, usage notes
Foreign words that appear in those articles are clickable,  links lead to other articles.
There is also a feature to sound out words or even phrases.
You can also do the reverse search: click an English word and explore the page showing you the ways how the word can be translated (with examples).
Currently supported languages are English, German, French, Russian and Dutch.