Are you more art, code or game design oriented? This will shape you study and research. Learn one terminology at a time and don’t worry too much, this comes naturally with time. Epic’s Youtube Channel is amazing to start learning the engine itself, as well as other channels on Youtube or even Digital Tutors (which now it’s called Pluralsight Creative, an online platform with courses on every software you need). 3DBuzz also helped me a lot in many things when I was beginning, there is content on 3D and coding there. So, help yourself! Lots of materials online for free or small fee.
I believe you are not art oriented or just beginning at it, for you don’t know the terminology already (many things you cited). As a coder or game designer, you can grab free models and animations and whatnot online and starting building your prototypes.
Hope it helps! Welcome to game dev world 