flash‧back /ˈflæʃbæk/ noun

1. [uncountable and countable] a scene in a film, play, book etc that shows something that happened before that point in the story:
The events of the hero’s childhood are shown as a series of flashbacks.

2. [countable] a sudden very clear memory of something that happened to you in the past:
Eaton still has flashbacks of the crash.

3. [countable] an occasion when someone has the same bad feeling that they had when they took an illegal drug in the past:
Many users of this drug experience flashbacks.

4. [countable] technical a burning gas or liquid that moves back into a tube or container

[TahlilGaran] Dictionary of Contemporary English ▲

flashback
noun
ADJ. sudden
VERB + FLASHBACK get, have
PREP. in (a) ~ The story is told in flashback.
~ to I had a sudden flashback to the time immediately after the war.

[TahlilGaran] Collocations Dictionary ▲