/ ˈflæʃbæk; NAmE / noun
1.
[ C , U ] a part of a film / movie, play, etc. that shows a scene that happened earlier in time than the main story :
The events that led up to the murder were shown in a series of flashbacks.
The reader is told the story in flashback .
2.
[ C ] a sudden, very clear, strong memory of sth that happened in the past that is so real you feel that you are living through the experience again