I made an extension that could help solve this problem

https://chrome.google.com/webstore/detail/letterinfo/lgfiogkobjanmdmafoghaioeomekpmhl

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Simply enter a letter to view it's description.

You can enter a letter either by clicking the box in the bottom left hand corner and then typing something,

or by selecting a letter (on the web page you're currently viewing) and then opening the extension

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I'm always looking for suggestions and bug reports

If you think there's something the extension should have or encounter a problem, please let me know!