How do you say your my world in Portuguese?

There are a few ways to say "You're my world" in Portuguese, depending on the level of formality and affection you want to convey:

Formal:

* Você é o meu mundo. (This is the most literal translation and is appropriate for formal situations.)

Informal:

* Você é meu mundo. (This is a more common and casual way to say it.)

* Você é tudo pra mim. (This translates to "You are everything to me" and is a very common and affectionate way to express love.)

* Você é o meu universo. (This is a more poetic and romantic way to say it.)

Romantic:

* Meu mundo gira em torno de você. (This translates to "My world revolves around you" and is a very romantic way to say it.)

* Você é o meu sol, a minha lua, as minhas estrelas. (This is a very poetic and romantic way to say it, meaning "You are my sun, my moon, my stars.")

Remember to choose the phrase that best suits the context and your relationship with the person.