It has different meanings So= "Entonces", "Así qué" "So.... lets go" - "Entonces.... vamos" "So you don't understand" - "Así que no entiendes" / "Entonces no entiendes" So= "Tan" (size, quantity) "That was so awesome!" - "Eso fue tan genial!" "So big" - Tan grande "He's so far" - Él está tan lejos So= ¿Y? - You are bad - Eres malo - So? - ¿Y? - You broke my heart - Rompiste mi corazón - So what? - ¿Y qué? So/So do I=Yo también/Yo igual (Me too) (I couldn't use examples, my english isn't so good hahaha, sorry) I hope this is helpful to you :)

mmmmmm it can be different, depending the context...example. so what will we do.... y entonces que haremos? when there is a long silence and then suddenly say ...so... it means y. so let's go on...bueno sigamos.