shortage vs want

shortage and want both are nouns.

Word	Noun	Adjective	Verb	Adverb
shortage	Yes	No	No	No
want	Yes	No	Yes	No

As nouns, want is a hypernym of shortage; that is, want is a word with a broader meaning than shortage:

Other hypernyms of shortage include deficiency, lack.

shortage (noun)	want (noun)
the property of being an amount by which something is less than expected or required	a specific feeling of desire
an acute insufficiency	anything that is necessary but lacking
	a state of extreme poverty
	the state of needing something that is absent or unavailable

shortage (verb)	want (verb)
	wish or demand the presence of
	have need of
	hunt or look for; want for a particular reason
	feel or have a desire for; want strongly
	be without, lack; be deficient in