This is the 4217th most frequent Spanish word.
maratón
A long-distance race or an extended activity requiring great effort.
In this sentence, 'maratón' refers to a long-distance running race, typically covering a distance of 42 kilometers or 26 miles.
Participé en un maratón el fin de semana pasado.
I participated in a marathon last weekend.
Here, 'maratón' is used metaphorically to describe a prolonged viewing of movies consecutively.
Hicimos un maratón de películas en casa.
We had a movie marathon at home.
In this context, 'maratón' is used figuratively to emphasize an experience that was unusually lengthy or strenuous.