This is the 135th most frequent Spanish word.
lado
Side.
Here, 'lado' is used metaphorically to signify one's position or alliance in a disagreement.
Ponte de mi lado en esta discusión.
Stand by my side in this discussion.
In this context, 'lado' refers to a topographical part or side of an area.
La tienda está al otro lado de la calle.
The store is on the other side of the street.
Here, 'lado' is utilized to mean an aspect or dimension of a situation or object.