This is the 11460th most frequent Catalan word.
vertical
Perpendicular to the horizon; upright.
In this case, 'vertical' is used as an adjective to describe the orientation of the facade as upright and perpendicular to the ground.
La façana de l'edifici és completament vertical.
The facade of the building is completely vertical.
Here, 'vertical' describes the vertical alignment of the line in the drawing, indicating it is upright.
El dibuix mostra una línia vertical al mig.
The drawing shows a vertical line in the middle.
In this instance, 'vertical' is used to describe climbs that go upwards, emphasizing their steep nature.