Linguee was developed by over 400 lexicographers. It is unique in that it does not use machine-translation to provide examples of words in context — instead, it sources words from articles and research papers in the original language. As a result, it is an excellent dictionary app to find translations for specialized terminology.
You will learn the subtleties of various translations by reading paired paragraphs of text that have each been professionally translated, not translated by a machine. In some languages, you can listen to pronunciations by native speakers and read multiple translations of your chosen word or phrase.
Although translations are highlighted in each paragraph so you can compare how to use them in each language, they can be difficult to navigate quickly. If you are looking for a website with simple and professional translations, you can check out WordReference for several different languages. SpanishDict is also an excellent option for Spanish, and Pleco is the only dictionary you will ever need for Chinese.