not gonna define FEAT, then? ok.

...in this case, multi-threading. In other cases; AI workflows that others commercialize, a new type system in a language that already exists in another, a new sampling algorithm that has already existed by another name for decades, a permaculture innovation that farmers have been using for aeons, the list goes on...

just say "feature".

language is for communicating. don't impede that communication by using unnecessary terms.

I was trying to generalise a concept so I used a placeholder word. I feel that most people got that.