This is the 72nd most frequent Korean word.
간
The Korean word "간" can mean "liver," "interval/space," or "between," depending on context.
간 here is used to denote a duration of time.
이틀 간 여행을 다녀왔어요.
I went on a trip for two days.
간 here represents a relationship or an interval between two entities.
우리 둘 간의 오해를 풀자.
Let’s resolve the misunderstanding between us.
간 in this sentence indicates a connection or span between two locations.