I’m afraid that once a tag is created, there is no way to delete it or rename it. Or maybe I haven’t noticed something? I just realised that one of my tags is not very appropriately named and I wanted to change the name of it, but I can’t. Will this feature be added in the future? It would help a lot.
Not to worry Tags should disappear from your list if you remove the tag from all words that contain that tag.
OK, thanks for pointing this out to me!