This is the 7828th most frequent Spanish word.
marcos
"Marcos" is the plural of "marco," meaning "frames" (like picture frames) or "frameworks" in English.
In this context, 'marcos' refers to the physical frames of the windows.
Los marcos de las ventanas son de madera.
The window frames are made of wood.
Here, 'Marcos' is a proper name of a person.
Marcos es un excelente estudiante en matemáticas.
Marcos is an excellent student in mathematics.
In this usage, 'marcos' describes conceptual frameworks or structures for organizing a project.