This is the 311th most frequent Spanish word.
marco
"Marco" means "frame" or "framework" in English.
Here, 'marco' refers to the physical frame surrounding the door.
El marco de la puerta es de madera.
The door frame is made of wood.
'Marco' here indicates the decorative frame surrounding the painting.
Este cuadro tiene un marco dorado.
This painting has a golden frame.
In this context, 'marco' stands for the conceptual framework or scope of the project.