/ səˈnɑːriəʊ; NAmE səˈnærioʊ/ noun ( pl. -os )
1.
a description of how things might happen in the future :
Let me suggest a possible scenario .
The worst-case scenario (= the worst possible thing that could happen) would be for the factory to be closed down.
a nightmare scenario
2.
a written outline of what happens in a film / movie or play
SYN synopsis
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WORD ORIGIN
late 19th cent.: from Italian , from Latin scena scene.