noun Descargar 🔗Compartir Vigilante, sereno One set to watch; a person who keeps guard, especially one who guards a building, or the streets of a city, by night. Examples : "The night watchmen patrolled the empty office building to protect it from burglars. " Los serenos patrullaban el edificio de oficinas vacío para protegerlo de los ladrones. police job person organization Chat con IAJuego de vocabularioPracticar lectura