Yes, the update really sucks and I can't get anyone to even respond to queries any more.
What you point out, along with the loss of landscape mode on tablets, has made the app a whole lot worse than it used to be.
I, too, used to love to tap on a single word to get all the meanings.
Of course, the app has been totally decimated. Reading and listening are gone, as has your vocabulary history. In the name of what?
Lingvist: PLEASE LISTEN TO US AND BRING BACK THE FUNCTIONALITY THAT EXISTED BEFORE THIS DREADFUL UPDATE. It was a lovely app, but no more. I refuse to use it until it's fixed.