visitation vs disaster

visitation and disaster both are nouns.

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

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

Other hypernyms of visitation include calamity, cataclysm, catastrophe, tragedy.

visitation (noun)	disaster (noun)
an official visit for inspection or supervision	an act that has disastrous consequences
an annoying or frustrating or catastrophic event	an event resulting in great loss and misfortune
any disaster or catastrophe	a state of extreme (usually irremediable) ruin and misfortune