Thanks to feedback from users, I've been trying to improve the functionality of the Word Bank.  As this course has progressed (now heading into level 3), so has the size of the Word Bank.  While this of course is a good thing, it also means that when searching for certain entries in Pinyin, a lot of homonym results may also show which may be completely unrelated to what you are searching for.

In the past, the Pinyin search did not support tone marks, so every variation of a word and all its homonym equivalents were shown with the search.  Recently, I have added tone mark support to increase this accuracy.  This has resulted in better results when you click on Pinyin words from the Complete transcripts.  However the problem still remained that it wasn't easy for users to enter tone marks when searching for Pinyin words manually.

I'm happy to say that this problem has now been solved!  When searching in Pinyin, you can now use numbers to represent tone marks (similar to the number format used when lessons are released on the front page of the site), and the Word Bank will automatically convert these numbers into the appropriate tones.  Try it out for yourself and let me know what you think.