This is the 11689th most frequent Korean word.
남자가
"남자가" means "man" or "a man" as the subject of a sentence in Korean.
Here, '남자가' serves as the subject marker for '남자' (man), indicating he is the subject of the sentence.
남자가 공원을 산책하고 있습니다.
The man is walking in the park.
In this context, '남자가' marks '남자' (man) as the subject of the clause '남자가 좋아하는' (the man likes), which modifies '음식' (food).
나는 남자가 좋아하는 음식을 준비했어요.
I prepared the food that the man likes.
Here, '남자가' serves again as the subject marker, indicating '남자' (man) is the subject of '도착할 거예요' (will arrive).