This is the 10754th most frequent Korean word.
귀국길에
"On the way back to one's home country."
In this sentence, 귀국길에 refers to the circumstances or timing when the speaker was on their way back to their home country.
귀국길에 친구에게 줄 선물을 샀습니다.
On my way back to my country, I bought a gift for my friend.
Here, 귀국길에 metaphorically refers to the journey or concept of returning to one’s home country, invoking thoughts and feelings.
그는 귀국길에 대한 생각에 밤잠을 이루지 못했다.
He couldn't sleep at night thinking about his return home.
In this context, 귀국길에 specifies the period or occasion when the speaker was returning to their home country and decided to stop by somewhere.