Online dictionary retrieves instantaneous results in German, French, Italian, English and Spanish

Here's a fun online dictionary I just came across, one that resembles Google Translate a bit in the way it works instantaneously without having to wait for a separate page to load, but this is a dictionary instead of a translation tool and it also returns results in five languages at the same time. The dictionary uses Google's Go programming language, and IALs could definitely benefit from a tool like this too. Interlingua has an online dictionary on its site, but finding a single word can take quite some time and it's more efficient to just find or create a txt file to load up in a single tab to search from. Lingua Franca Nova has done a good job here with a dictionary available here in an easily searchable form. But a dictionary resembling the one mentioned here would be even faster.