This is the 3500th most frequent Japanese word.
紐
String; cord; strap.
Here, '紐' refers to a strap or string in a physical sense, specifically the string component of the bag.
このバッグの紐が切れそうです。
The string of this bag is about to break.
In this sentence, '紐' signifies a generic string or cord, indicating a simple material item.
古い紐を新しいものに取り替えました。
I replaced the old string with a new one.
Here, '紐' is used figuratively to represent ties or connections in a social or organizational context.