1. Complete collections of items that belong together, with all necessary components included
The store sells full sets of kitchen utensils.
A loja vende jogos completos de utensílios de cozinha.
2. In sports, complete matches or rounds where all participants finish
The tennis player won three full sets against her opponent.
A tenista venceu três sets completos contra sua adversária.
3. Complete collections in entertainment or media (books, DVDs, etc.)
I bought the full sets of the Harry Potter book series.
Comprei os jogos completos da série de livros Harry Potter.