For commercial multi-language dictionaries you would need to use a reader that supports MOBI DRM (encryption). These are now rare, and perhaps a Bookeen Cybook Gen3 with the MOBI firmware would be your best bet. I don't know how it handles notes or clippings from the ebook though.
The PocketBooks (perhaps the new 302 with a touch screen is best) and the Onyx Boox 60 (also sold as BeBook Neo) use open source dictionaries, and can take notes.
See the
E-book Reader Matrix, which includes Dictionary lookup and highlighting rows.