Glossary
It would be useful to insert a Glossary item in the main menu between Handbook and Forums.
I see three reasons for that :
1) the possibility to go to a page quickly, bypassing the search
2) a good place to set definitions
3) a good place to establish which is the best word for a translation
Comments
To make sure we have the same thing in mind, you're talking about a page with the most commonly used English terms and their translation, right? This is indeed much useful.
We could use 2 pages for each language. One is glossary, another one is styleguide. The guide can be general style information on how to improve translations. But lets start with the glossary. Give me some time to see where can we set it up.
Stub made at http://musescore.org/en/handbook/glossary
So, now, we can make the glossary list with terms. This page can also be translated.
See also this issue: #8140: Documentation: Glossary vs. Snippets