This is the 5258th most frequent Korean word.
대구시
"Daegu-si" refers to Daegu City, a metropolitan city in South Korea.
Here, '대구시' is used as a proper noun referring to the official name of the city.
대구시는 대구광역시의 이름입니다.
Daegu-si is the name of Daegu Metropolitan City.
In this sentence, '대구시' denotes the city itself to discuss its weather conditions.
대구시의 기후는 온난하며 여름과 겨울의 기온 차이가 큽니다.
Daegu-si's climate is mild, with a significant temperature difference between summer and winter.
Here, '대구시' is used to describe the central area of the city to talk about its inhabitants and facilities.