This is the 19478th most frequent Korean word.
약속
Promise; appointment.
약속 refers to a prior engagement or appointment in this context.
나는 약속이 있어서 먼저 갈게요.
I have a commitment, so I'll leave first.
약속 signifies a verbal agreement to meet someone.
친구와 공원에서 만나기로 약속했어요.
I made a promise to meet my friend at the park.
약속 in this sentence emphasizes the ethical and moral aspect of fulfilling promises.