desire vs want

desire and want both are nouns.

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

As nouns, want is a hyponym of desire; that is, want is a word with a more specific, narrower meaning than desire:

As verbs, desire and want are synonyms defined as:

desire (noun)	want (noun)
an inclination to want things	a specific feeling of desire
the feeling that accompanies an unsatisfied state	anything that is necessary but lacking
something that is desired	a state of extreme poverty
	the state of needing something that is absent or unavailable

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