famine vs tragedy

famine and tragedy both are nouns.

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

As nouns, tragedy is a hypernym of famine; that is, tragedy is a word with a broader meaning than famine:

famine: a severe shortage of food (as through crop failure) resulting in violent hunger and starvation and death
tragedy: an event resulting in great loss and misfortune

Other hypernyms of famine include calamity, cataclysm, catastrophe, disaster.

famine (noun)	tragedy (noun)
a severe shortage of food (as through crop failure) resulting in violent hunger and starvation and death	drama in which the protagonist is overcome by some superior force or circumstance; excites terror or pity
an acute insufficiency	an event resulting in great loss and misfortune