This is the 11364th most frequent Korean word.
김지연
"김지연" is a Korean name, typically referring to a person.
In this sentence, '김지연' is used as a proper noun to indicate the name of the subject who performed the action of going to school.
김지연은 학교에 갔다.
Kim Ji-yeon went to school.
Here, '김지연' plays the role of the object being looked for. It functions as a proper noun, specifying the individual.
김지연을 찾고 있습니다.
I am looking for Kim Ji-yeon.
In this instance, '김지연' is used as a proper noun to identify the person who is the object of people’s affection.