Meaning of “tragedy” - Learner’s Dictionary

tragedy

noun uk us /ˈtrædʒədi/
SAD EVENT [ C, U ]

B2 an event or situation that is very sad, often involving death:

the tragedy of their daughter's death
PLAY [ C ]

a play with a sad end:

a Greek tragedy

(Definition of “tragedy” from the Cambridge Learner’s Dictionary © Cambridge University Press)