Usted, ustedes, vosotros

Hola Blessing

To expand a bit what Marsha rightly said, in Spanish we have different ways of saying "you", depending on the formality or informality you will use one or another. If you are speaking with people you know well, family, young people in general in informal situations you will refer to them as "tú" (you singular) or "vosotros" (you plural). In more formal situations, with people you don't know and generally elderly people we tend to use the more formal you: usted (singular) or ustedes (plural). Bear in mind that in Latin America the plural informal "vosotros" is not used, they use "ustedes" for any plural you. 

Here is some more information about these pronouns:

Pronombres de sujeto 

Formality

Tú vs Usted

I hope it helps.

Saludos

Inma