Total set

Imagine you have a bunch of toys, like action figures, stuffed animals and puzzles. A total set means you have all the toys in that group. For example, if you have a total set of Superhero action figures, it means you have ALL the Superhero action figures in that collection. It's like completing a puzzle, you have all the pieces to create the full picture. A total set is when you have every single thing in that group and nothing is missing.