disaster vs catastrophe

disaster and catastrophe both are nouns.

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

As nouns, disaster and catastrophe are synonyms defined as:

disaster and catastrophe: an event resulting in great loss and misfortune

Other synonyms of disaster include calamity, cataclysm, tragedy.

As nouns, disaster and catastrophe are synonyms defined as:

disaster and catastrophe: a state of extreme (usually irremediable) ruin and misfortune

disaster (noun)	catastrophe (noun)
an act that has disastrous consequences	an event resulting in great loss and misfortune
an event resulting in great loss and misfortune	a sudden violent change in the earth's surface
a state of extreme (usually irremediable) ruin and misfortune	a state of extreme (usually irremediable) ruin and misfortune