glossary has eight questions (the last week I added it to three questions), no tag excerpt, and no wiki. The most prominent question having this tag is
NOTE: The referred tag was included on the above question since rev 1.
I have googled [site:stackexchange.com meta glossary] and look directly on some tag pages from other Meta sites, but I was not able to find site specific Meta with a tag named "glossary".
Should we add a tag excerpt to glossary even if it's only used on eight questions?
I think that it's worthy to mention that we have terminology which has 60 questions, a tag excerpt and tag wiki
The use or definition of a term in the context of Stack Exchange.
Terminology, in the context of Stack Exchange, refers to the terms or other words/phrases that are used by the Stack Exchange site itself or that are used by its members in reference to the Stack Exchange network.
This tag is not for describing context and identifying a word that fits it (aka a dictionary service). The terms should be directly related to Stack Exchange in some way.