Being able to look up a word in an online dictionary, e.g. oxforddictionaries.com from directly in Scrivener would be great. It could be either by highlighting and right clicking a word, by going to the Writing Tools menu, or by hitting a keyboard shortcut.
Thanks.
You can already do in this in the same fashion that you would look up a word in any other Mac program. The default shortcut is Ctrl-Cmd-D, which will define the word you are pointing at with the mouse. With the trackpad, there is also a “Look up” gesture that can be enabled, using three fingers to tap on the word.