This is the 18204th most frequent Korean word.
순천매산여고
Suncheon Maesan Girls' High School.
순천매산여고 refers to the proper name of the high school being mentioned, playing the role of the subject in the sentence.
순천매산여고는 명문 고등학교로 알려져 있습니다.
Suncheon Mae-san Girls' High School is known as a prestigious high school.
순천매산여고 is used as the direct object indicating which institution was attended by the subject (mother).
나의 어머니는 순천매산여고를 졸업했습니다.
My mother graduated from Suncheon Mae-san Girls' High School.
순천매산여고 serves as a locational noun indicating where the meeting will take place.