This is the 4820th most frequent Spanish word.
cupo
Quota or capacity.
Here, 'cupo' refers to the capacity or number of available spots for the event.
El cupo para el evento es limitado.
The capacity for the event is limited.
In this case, 'cupo' is being used to signify seating availability on the bus.
Ya no hay cupo en el autobús, tendremos que esperar al siguiente.
There are no seats available on the bus, we will have to wait for the next one.
Here, 'cupo' refers to the availability of a slot or spot in the course.