scenario
US /səˈner.i.oʊ/
UK /səˈner.i.oʊ/

1.
a written outline of a movie, play, or novel, giving details of the plot and individual scenes
:
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The director approved the final scenario for the film.
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She spent months writing the detailed scenario for her new play.
2.
a postulated sequence or development of events
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The worst-case scenario involves a complete system failure.
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We need to consider all possible scenarios before making a decision.