What are the advanced stuff that an intermediate player should know?

I play LoL so I know what a MOBA is,I also used to play DotA 2 in 2014 but I stopped after two months or so.

I need an explanation for the more in depth stuff like roles,what is the meta of each lane,pulling,stacking,creep blocking etc.

Would be nice if you could contribute a piece of your knowledge here :)