playscript vs scenario

playscript and scenario both are nouns.

Word	Noun	Adjective	Verb	Adverb
playscript	Yes	No	No	No
scenario	Yes	No	No	No

As nouns, scenario is a hyponym of playscript; that is, scenario is a word with a more specific, narrower meaning than playscript:

playscript: a written version of a play or other dramatic composition; used in preparing for a performance
scenario: an outline or synopsis of a play (or, by extension, of a literary work)

Other hyponyms of playscript include prompt copy, promptbook, continuity, dialog, dialogue, libretto, screenplay, shooting script.

playscript (noun)	scenario (noun)
a written version of a play or other dramatic composition; used in preparing for a performance	an outline or synopsis of a play (or, by extension, of a literary work)
	a postulated sequence of possible events
	a setting for a work of art or literature