disaster vs destruction

disaster and destruction both are nouns.

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

As nouns, destruction is a hypernym of disaster; that is, destruction is a word with a broader meaning than disaster:

disaster: an act that has disastrous consequences
destruction: the termination of something by causing so much damage to it that it cannot be repaired or no longer exists

Other hypernyms of disaster include devastation.

disaster (noun)	destruction (noun)
an act that has disastrous consequences	the termination of something by causing so much damage to it that it cannot be repaired or no longer exists
an event resulting in great loss and misfortune	an event that completely destroys something
a state of extreme (usually irremediable) ruin and misfortune	a final state