I like theory.
I recently made a post and was highly surprised to find out that "theory" wasn't a tag option. I have never heard of the word "theorics" before in my life and only found it by looking at the list of tags. Edit: I didn’t even realize it was “theorics,” I thought it was “theoretics” which sounds more like a word to me.
Speaking as a native ...
This is done now, sorry for the delay.
We still have natural-language and language-processing, which sound pretty similar to natural-language-processing — it might be worth revisiting this NLP tag discussion.