Grand Guignol vs dramatic play

Grand Guignol and dramatic play both are nouns.

Word	Noun	Adjective	Verb	Adverb
Grand Guignol	Yes	No	No	No
dramatic play	Yes	No	No	No

As nouns, dramatic play is a hypernym of Grand Guignol; that is, dramatic play is a word with a broader meaning than Grand Guignol:

Grand Guignol: a play of a macabre or horrific nature
dramatic play: a dramatic work intended for performance by actors on a stage

Other hypernyms of Grand Guignol include drama, play.

Grand Guignol (noun)	dramatic play (noun)
a play of a macabre or horrific nature	a dramatic work intended for performance by actors on a stage