This is the 12438th most frequent Spanish word.
marchar
To march, walk, leave, or function.
Here, 'marchar' is used to refer to the act of leaving or departing.
Vamos a marchar temprano para llegar a tiempo.
We will leave early to arrive on time.
In this example, 'marchar' refers to participating in a march or protest walk.
Ellos decidieron marchar en la protesta para expresar su opinión.
They decided to march in the protest to express their opinion.
Here, 'marchar' is used metaphorically to indicate proper functioning.