WordporMeaningbecause of (cause)Part of speechprepositionPronunciationCourseSpanish (Spain)LessonExpressing cause (por)Usages of porLa médica ha llegado tarde hoy por el atasco.The doctor has arrived late today because of the traffic jam.No hemos podido coger el tren por un atasco grande.We have not been able to catch the train because of a big traffic jam.