Final answer:
Foreshadowing is a device used by writers to give clues about future events in a story.
Step-by-step explanation:
A device used by writers that give a clue as to what will happen is called a foreshadowing.
Foreshadowing is a literary technique used by authors to hint or suggest what will happen later in a story. It adds suspense and builds anticipation for the reader. For example, if a character in a story keeps having nightmares about a fire, it may foreshadow a future fire-related event in the plot.
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