scenario

Concise Oxford English Dictionary © 2008 Oxford University Press:
scenario /sɪˈnɑːrɪəʊ/

▶noun (pl. scenarios)

• 1 a written outline of a film, novel, or play giving details of the plot and individual scenes.

  ■ a setting, in particular for a work of art or literature.

• 2 a postulated sequence or development of events.

– origin C19: from Ital., from L. scena ‘scene’.