Print out vocab lists
It would be very beneficial if I we could print out the vocab list in a document. For example, have 2 columns on a page. the left side the foreign language and on the right side the native language.

I agree, a simple option to print out a list would be a good feature to add in future.
In the meantime. Did you know there is a flexible export option on the words page?
1. Go to http://readlang.com/words
2. Select the words you wish to export (to select all words click the checkbox to the left of the “Actions” button, then if there are more than 25 words, click “Select all ??? words”.
3. Click Actions → Export
4. Choose which fields to export. For a simple word list, use only “Original” and “Translation”. To include the contexts, leave it as the default.
5. Click “Export File”
This will save a file to your computer which you can open in another program to view and print. A spreadsheet such as Excel or Google Drive Spreadsheet would work well.