drama vs dramatic event

drama and dramatic event both are nouns.

Word	Noun	Adjective	Verb	Adverb
drama	Yes	No	No	No
dramatic event	Yes	No	No	No

As nouns, drama and dramatic event are synonyms defined as:

drama and dramatic event: an episode that is turbulent or highly emotional

drama (noun)	dramatic event (noun)
the quality of being arresting or highly emotional	an episode that is turbulent or highly emotional
the literary genre of works intended for the theater
a dramatic work intended for performance by actors on a stage
an episode that is turbulent or highly emotional