lazaretto vs hospital

lazaretto and hospital both are nouns.

Word	Noun	Adjective	Verb	Adverb
lazaretto	Yes	No	No	No
hospital	Yes	No	No	No

As nouns, hospital is a hypernym of lazaretto; that is, hospital is a word with a broader meaning than lazaretto:

lazaretto: hospital for persons with infectious diseases (especially leprosy)
hospital: a health facility where patients receive treatment

Other hypernyms of lazaretto include infirmary.

lazaretto (noun)	hospital (noun)
hospital for persons with infectious diseases (especially leprosy)	a health facility where patients receive treatment
a small locker at the stern of a boat or between decks of a ship	a medical institution where sick or injured people are given medical or surgical care