* Location: "El libro está atrás de la mesa." (The book is behind the table.)
* Direction: "Gira a la izquierda y luego camina hacia atrás." (Turn left and then walk backwards.)
* Time: "Dejé el trabajo atrás y ahora estoy de vacaciones." (I left work behind and now I'm on vacation.)
* Figurative: "Deja atrás tus miedos." (Leave your fears behind.)
It's important to consider the context to understand the exact meaning of "atrás".