Dictionary/Encyclopedia of Terms
How about a Wiki-style Dictionary or Encyclopedia of Jewish terms? This could either be a Category or maybe part of Community-specific Help.
Instead of each reference to a Jewish/Hebrew/Aramaic/etc. term either being left unlinked (requiring those who don't know the terms to spend a lot of extra time Google'ing just to understand the answer to a question) or explained in place (which often doesn't work well) or linked to numerous different 3rd-party sites (varying from general sites like Wikipedia to specific Jewish sites like Chabad, OU, Sefaria, etc., of widely varying quality), we build our own here. It could start as one-liners (e.g., more like a dictionary - e.g., Muktzah: An object forbidden for use on Shabbos or Yom Tov) and evolve (based on user interest in a topic) to a more encyclopedic style (e.g., in the case of Muktzah, listing the different categories and giving examples of when movement is forbidden, etc.).
The actual structure might be best as a Wiki - a large hyperlinked document rather than a series of separate separate posts, and community edited rather than a single "owner". Any terms that have associated tags could have a way to click from the tag to the Wiki (as well as from any explicitly linked key words in posts) and from the Wiki to the question list - e.g., read about Shabbos in the Wiki, learn out about Muktzah (a novel concept if you've never heard of it before) and then click to the list of questions matching the Muktzah tag.