What does Ud mean in Spanish?

"Ud" in Spanish stands for Usted, which is the formal "you". It's used when addressing someone you don't know well, someone older than you, someone in a position of authority, or someone you want to show respect to.

Here's a breakdown:

* Tú is the informal "you" used with friends, family, and people you know well.

* Usted is the formal "you" used for everyone else.

* Vos is another informal "you" used in some Spanish-speaking countries, but it's not as widely used as tú.

It's important to note that the use of "Usted" is often regional and depends on the specific context. For example, in some parts of Latin America, it's more common to use "Usted" with everyone, even people you know well.