The word "fallen" has several meanings, depending on its context.
1) In a physical sense, it can refer to something that is broken or damaged, as in "My favorite vase fell and broke into pieces."
2) Figuratively, it can mean someone who has lost their honor, reputation, or position through misconduct, as in "He was once a respected member of society but now he's fallen from grace."
3) In a more general sense, the word can refer to something that is no longer existent or operational, such as an abandoned building being referred to as a "fallen" structure.