disaster vs tragedy

disaster and tragedy both are nouns.

Word	Noun	Adjective	Verb	Adverb
disaster	Yes	No	No	No
tragedy	Yes	No	No	No

As nouns, disaster and tragedy are synonyms defined as:

Other synonyms of disaster include calamity, cataclysm, catastrophe.

disaster (noun)	tragedy (noun)
an act that has disastrous consequences	drama in which the protagonist is overcome by some superior force or circumstance; excites terror or pity
an event resulting in great loss and misfortune	an event resulting in great loss and misfortune
a state of extreme (usually irremediable) ruin and misfortune