This is the 4264th most frequent Spanish word.
obligatorio
Required or mandatory.
Here, 'obligatorio' indicates a regulation or policy in place for building access.
Llevar identificación es obligatorio para ingresar al edificio.
Carrying identification is mandatory to enter the building.
Here, 'obligatorio' denotes a legal or rule-based mandate.
Es obligatorio usar el cinturón de seguridad al conducir.
It is mandatory to wear a seatbelt while driving.
Here, 'obligatorio' refers to a requirement set by the course's structure.