Thanks for the feedback, David.

The intended use-case behind this extension is like this (clearly not explained very well in the description):
- You learn a new word. You are afraid you will forget the word unless you see or use it once in a while.
- You add the word to the list.
- The word is highlighted every time you encounter it while browsing the internet, and you get notified of it. It is supposed to reinforce the stickiness of the word.
- You check "History" tab (very recent feature) to find out which words in your list you encounter most often.

This is why you may need the extension even if you know the description of the word.

Thanks