i'm kind of new to gaming and i am somewhat confused about all the terminology regarding to types of video game releases. i would appereciate if anyone can clarify somethings for me.

okay well as i understand it DLCs are additional content for the "base game", but what can exactly be considered the base game? i know the obvious one which is the standard edition of the game! but what i want to know is whether an alternative version such as remastered version or a ported version (e.g. Call of Duty 4: Modern Warfare And it's mobile or nintendo ports) or even the special editions of the game can be considered a base game as well?

is there any other term to refer to the base game?