This is the 378th most frequent Korean word.
씨의
"씨의" is a possessive form meaning "Mr./Ms./Mrs./Miss [someone's]" in English.
This context of '씨의' denotes possession, indicating that the house belongs to Mr./Ms. Kim.
김씨의 집은 매우 깨끗합니다.
Kim's house is very clean.
In this sentence, '씨의' highlights that the research is associated with Mr./Ms. Choi, emphasizing its role in attributing work or contributions to an individual.
최씨의 연구는 많은 사람들에게 영향을 주었습니다.
Choi's research influenced many people.
Here, '씨의' is used to identify a narrative belonging to Mr./Ms. Park, showing its use in attributing ownership or origin of the story.