noun
script; screenplay
Refers to the written text of a film, play, or broadcast, including dialogue and stage directions.
彼は新しい映画のシナリオを書いている。
He is writing the script for a new movie.
noun
Used for a hypothetical sequence of events, a plan, or an outline of a possible future situation.
最悪のシナリオを想定して準備する。
We prepare by assuming the worst-case scenario.