This is the 11294th most frequent Korean word.
김남주
"김남주" (Kim Nam-joo) is a Korean personal name.
Here, '김남주' is possessive, indicating the attribute related to the individual, 'acting'.
김남주의 연기는 매우 인상적이에요.
Kim Nam-joo's acting is very impressive.
Uses '김남주' as the subject performing the action described in the sentence.
김남주는 오늘 촬영에서 매우 열심히 일했어요.
Kim Nam-joo worked very hard in today's filming.
In this sentence, '김남주' is used as a proper noun referring to a specific individual.