This is the 17511th most frequent Russian word.
трагическую
"Tragic" (feminine accusative singular form).
Here, 'трагическая' is used as an adjective describing 'судьба' (fate), indicating that the fate was marked by tragic events.
У нее была трагическая судьба.
She had a tragic fate.
In this sentence, 'трагическая' modifies 'пьеса' (play), showing that the play belongs to the tragedy genre.
Он написал трагическую пьесу.
He wrote a tragic play.
Here, 'трагической' is used in the prepositional case as an adjective describing 'кульминации' (climax), emphasizing its tragic nature in the context of the narrative.