While answering a semantic-web-related question, I noticed there is a tag ontologies on StackOverflow that seems like a duplicate of ontology. It has a strange, plural form, has no description and questions tagged with it match the other one very well.
I think it should be marked as a synonym or perhaps deleted (there aren't many questions tagged with it).
I don't have the ability to suggest a tag synonym, much less create one. Therefore, I thought I should write a question here so you, grown-ups can fix it.