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I preferred a very short keyword to maximize the usefulness of these shortcuts. You can obviously decide to use a more descriptive keyword using more letters.
How to use this
If you want to install a new search engine to Google Chrome, just right-click on the omnibar (addressbar) , choose 'Edit Search Engines' and click Add. For each example I reported all the required parameters, then it's just a copy & paste job for you!
The Free Dictionary
WordReference Translation IT -> EN
Obviously you can choose a different couple of languages, simply editing /iten/ with the desired one /esen/
WordReference Translation EN -> IT
Obviously you can choose a different couple of languages, simply editing /enit/ with the desired one /enes/
New York Times