It means "you are" "Eres" is from the verb "ser" (which means "to be") and is in the "tu" form which is "you" (singluar). There are two verbs for "to be" in spanish - "ser" and "estar". there are many different uses but very basic rule is that "ser" is used to describe something permenant, whilst "estar" is used for something which changes. example: Eres listo/a = you are intelliget ¿Estás listo/a? = are you ready?
"You are" (familiar)
Tú eres = You are
what are you?
de donde eres = where are you from
you are
It is masculine for "you are mean".
It's you
it mean "only you"
You are (tu eres) my (mi) world (mundo).
Eres bien mensa means: You are stupid/silly.
you are pretty
Translation: You are lazy.
Hello, who are you?